diff --git a/screenshots/chapter1/Figure1-1.png b/screenshots/chapter1/Figure1-1.png
new file mode 100644
index 0000000..ec2a451
Binary files /dev/null and b/screenshots/chapter1/Figure1-1.png differ
diff --git a/screenshots/chapter1/Figure1-10.png b/screenshots/chapter1/Figure1-10.png
new file mode 100644
index 0000000..13b2c43
Binary files /dev/null and b/screenshots/chapter1/Figure1-10.png differ
diff --git a/screenshots/chapter1/Figure1-11.png b/screenshots/chapter1/Figure1-11.png
new file mode 100644
index 0000000..0f112bb
Binary files /dev/null and b/screenshots/chapter1/Figure1-11.png differ
diff --git a/screenshots/chapter1/Figure1-12.png b/screenshots/chapter1/Figure1-12.png
new file mode 100644
index 0000000..255bd71
Binary files /dev/null and b/screenshots/chapter1/Figure1-12.png differ
diff --git a/screenshots/chapter1/Figure1-13.png b/screenshots/chapter1/Figure1-13.png
new file mode 100644
index 0000000..f89f65a
Binary files /dev/null and b/screenshots/chapter1/Figure1-13.png differ
diff --git a/screenshots/chapter1/Figure1-14.png b/screenshots/chapter1/Figure1-14.png
new file mode 100644
index 0000000..3d5b478
Binary files /dev/null and b/screenshots/chapter1/Figure1-14.png differ
diff --git a/screenshots/chapter1/Figure1-15.png b/screenshots/chapter1/Figure1-15.png
new file mode 100644
index 0000000..374eba8
Binary files /dev/null and b/screenshots/chapter1/Figure1-15.png differ
diff --git a/screenshots/chapter1/Figure1-16.png b/screenshots/chapter1/Figure1-16.png
new file mode 100644
index 0000000..3bcc068
Binary files /dev/null and b/screenshots/chapter1/Figure1-16.png differ
diff --git a/screenshots/chapter1/Figure1-17.png b/screenshots/chapter1/Figure1-17.png
new file mode 100644
index 0000000..f22dea1
Binary files /dev/null and b/screenshots/chapter1/Figure1-17.png differ
diff --git a/screenshots/chapter1/Figure1-18.png b/screenshots/chapter1/Figure1-18.png
new file mode 100644
index 0000000..a51ad44
Binary files /dev/null and b/screenshots/chapter1/Figure1-18.png differ
diff --git a/screenshots/chapter1/Figure1-19.png b/screenshots/chapter1/Figure1-19.png
new file mode 100644
index 0000000..e9710da
Binary files /dev/null and b/screenshots/chapter1/Figure1-19.png differ
diff --git a/screenshots/chapter1/Figure1-2.png b/screenshots/chapter1/Figure1-2.png
new file mode 100644
index 0000000..3208273
Binary files /dev/null and b/screenshots/chapter1/Figure1-2.png differ
diff --git a/screenshots/chapter1/Figure1-20.png b/screenshots/chapter1/Figure1-20.png
new file mode 100644
index 0000000..8affbd6
Binary files /dev/null and b/screenshots/chapter1/Figure1-20.png differ
diff --git a/screenshots/chapter1/Figure1-21.png b/screenshots/chapter1/Figure1-21.png
new file mode 100644
index 0000000..f99bd8f
Binary files /dev/null and b/screenshots/chapter1/Figure1-21.png differ
diff --git a/screenshots/chapter1/Figure1-3.png b/screenshots/chapter1/Figure1-3.png
new file mode 100644
index 0000000..b1e5a52
Binary files /dev/null and b/screenshots/chapter1/Figure1-3.png differ
diff --git a/screenshots/chapter1/Figure1-4.png b/screenshots/chapter1/Figure1-4.png
new file mode 100644
index 0000000..7573da0
Binary files /dev/null and b/screenshots/chapter1/Figure1-4.png differ
diff --git a/screenshots/chapter1/Figure1-5.png b/screenshots/chapter1/Figure1-5.png
new file mode 100644
index 0000000..b663fdb
Binary files /dev/null and b/screenshots/chapter1/Figure1-5.png differ
diff --git a/screenshots/chapter1/Figure1-6.png b/screenshots/chapter1/Figure1-6.png
new file mode 100644
index 0000000..afec1fe
Binary files /dev/null and b/screenshots/chapter1/Figure1-6.png differ
diff --git a/screenshots/chapter1/Figure1-7.png b/screenshots/chapter1/Figure1-7.png
new file mode 100644
index 0000000..dcd9945
Binary files /dev/null and b/screenshots/chapter1/Figure1-7.png differ
diff --git a/screenshots/chapter1/Figure1-8.png b/screenshots/chapter1/Figure1-8.png
new file mode 100644
index 0000000..ebe4efe
Binary files /dev/null and b/screenshots/chapter1/Figure1-8.png differ
diff --git a/screenshots/chapter1/Figure1-9.png b/screenshots/chapter1/Figure1-9.png
new file mode 100644
index 0000000..2b47197
Binary files /dev/null and b/screenshots/chapter1/Figure1-9.png differ
diff --git a/screenshots/chapter2/Figure2-1.png b/screenshots/chapter2/Figure2-1.png
new file mode 100644
index 0000000..8215f2b
Binary files /dev/null and b/screenshots/chapter2/Figure2-1.png differ
diff --git a/screenshots/chapter2/Figure2-10.png b/screenshots/chapter2/Figure2-10.png
new file mode 100644
index 0000000..83243d8
Binary files /dev/null and b/screenshots/chapter2/Figure2-10.png differ
diff --git a/screenshots/chapter2/Figure2-11.png b/screenshots/chapter2/Figure2-11.png
new file mode 100644
index 0000000..89cce0a
Binary files /dev/null and b/screenshots/chapter2/Figure2-11.png differ
diff --git a/screenshots/chapter2/Figure2-12.png b/screenshots/chapter2/Figure2-12.png
new file mode 100644
index 0000000..a177a18
Binary files /dev/null and b/screenshots/chapter2/Figure2-12.png differ
diff --git a/screenshots/chapter2/Figure2-13.png b/screenshots/chapter2/Figure2-13.png
new file mode 100644
index 0000000..191f36a
Binary files /dev/null and b/screenshots/chapter2/Figure2-13.png differ
diff --git a/screenshots/chapter2/Figure2-14.png b/screenshots/chapter2/Figure2-14.png
new file mode 100644
index 0000000..05bf7e1
Binary files /dev/null and b/screenshots/chapter2/Figure2-14.png differ
diff --git a/screenshots/chapter2/Figure2-15.png b/screenshots/chapter2/Figure2-15.png
new file mode 100644
index 0000000..3d8dc6d
Binary files /dev/null and b/screenshots/chapter2/Figure2-15.png differ
diff --git a/screenshots/chapter2/Figure2-16.png b/screenshots/chapter2/Figure2-16.png
new file mode 100644
index 0000000..e5ab7c1
Binary files /dev/null and b/screenshots/chapter2/Figure2-16.png differ
diff --git a/screenshots/chapter2/Figure2-17.png b/screenshots/chapter2/Figure2-17.png
new file mode 100644
index 0000000..2ae00f1
Binary files /dev/null and b/screenshots/chapter2/Figure2-17.png differ
diff --git a/screenshots/chapter2/Figure2-2.png b/screenshots/chapter2/Figure2-2.png
new file mode 100644
index 0000000..8db75cd
Binary files /dev/null and b/screenshots/chapter2/Figure2-2.png differ
diff --git a/screenshots/chapter2/Figure2-3.png b/screenshots/chapter2/Figure2-3.png
new file mode 100644
index 0000000..dc5aeed
Binary files /dev/null and b/screenshots/chapter2/Figure2-3.png differ
diff --git a/screenshots/chapter2/Figure2-4.png b/screenshots/chapter2/Figure2-4.png
new file mode 100644
index 0000000..7e92f9c
Binary files /dev/null and b/screenshots/chapter2/Figure2-4.png differ
diff --git a/screenshots/chapter2/Figure2-5.png b/screenshots/chapter2/Figure2-5.png
new file mode 100644
index 0000000..7cd796a
Binary files /dev/null and b/screenshots/chapter2/Figure2-5.png differ
diff --git a/screenshots/chapter2/Figure2-6.png b/screenshots/chapter2/Figure2-6.png
new file mode 100644
index 0000000..3a43c18
Binary files /dev/null and b/screenshots/chapter2/Figure2-6.png differ
diff --git a/screenshots/chapter2/Figure2-7.png b/screenshots/chapter2/Figure2-7.png
new file mode 100644
index 0000000..a434e2b
Binary files /dev/null and b/screenshots/chapter2/Figure2-7.png differ
diff --git a/screenshots/chapter2/Figure2-8.png b/screenshots/chapter2/Figure2-8.png
new file mode 100644
index 0000000..8700f9b
Binary files /dev/null and b/screenshots/chapter2/Figure2-8.png differ
diff --git a/screenshots/chapter2/Figure2-9.png b/screenshots/chapter2/Figure2-9.png
new file mode 100644
index 0000000..b0bf021
Binary files /dev/null and b/screenshots/chapter2/Figure2-9.png differ
diff --git a/screenshots/chapter5/Figure5-1.png b/screenshots/chapter5/Figure5-1.png
new file mode 100644
index 0000000..a63a843
Binary files /dev/null and b/screenshots/chapter5/Figure5-1.png differ
diff --git a/scripts/v6/ch10-01-bad-script.rsc b/scripts/v6/ch10-01-bad-script.rsc
index 0b29ef0..5863b08 100644
--- a/scripts/v6/ch10-01-bad-script.rsc
+++ b/scripts/v6/ch10-01-bad-script.rsc
@@ -3,7 +3,7 @@
 :local w {"mikrotik.com"; "www.google.com"; "twitter.com"};
 
 :foreach s in=$w do={
-    :local i [/resolve $s];
+    :local i [:resolve $s];
     :local p [/ping $i count=3 ];
     :local u [/tool fetch url=("https://$s") mode=https http-method=get \
         as-value keep-result=no];
diff --git a/scripts/v6/ch10-02-bad-script.rsc b/scripts/v6/ch10-02-bad-script.rsc
index 2c78ef9..d914d85 100644
--- a/scripts/v6/ch10-02-bad-script.rsc
+++ b/scripts/v6/ch10-02-bad-script.rsc
@@ -10,7 +10,7 @@
 :foreach s in=$w do={
 
     # try a DNS resolution of this site
-    :local i [/resolve $s];
+    :local i [:resolve $s];
 
     # try pinging the IP address of this site
     :local p [/ping $i count=3 ];
diff --git a/scripts/v6/ch10-03-bad-script.rsc b/scripts/v6/ch10-03-bad-script.rsc
index 9b8ed2f..c64f5e5 100644
--- a/scripts/v6/ch10-03-bad-script.rsc
+++ b/scripts/v6/ch10-03-bad-script.rsc
@@ -10,7 +10,7 @@
 :foreach SiteName in=$WebSites do={
 
     # try a DNS resolution of this site
-    :local IpAddress [/resolve $SiteName];
+    :local IpAddress [:resolve $SiteName];
 
     # try pinging the IP address of this site
     :local PingResult [/ping $IpAddress count=3 ];
diff --git a/scripts/v6/ch10-04-bad-script.rsc b/scripts/v6/ch10-04-bad-script.rsc
index d9298e2..5bde543 100644
--- a/scripts/v6/ch10-04-bad-script.rsc
+++ b/scripts/v6/ch10-04-bad-script.rsc
@@ -23,7 +23,7 @@
             a valid string!");
     }
 
-    return [/resolve $WebSiteName];
+    return [:resolve $WebSiteName];
 }
 
 # function to ping an IP address 3 times
diff --git a/scripts/v6/ch10-05-error_check.rsc b/scripts/v6/ch10-05-error_check.rsc
index e8e5b43..11c35ea 100644
--- a/scripts/v6/ch10-05-error_check.rsc
+++ b/scripts/v6/ch10-05-error_check.rsc
@@ -2,6 +2,6 @@
 :local WebSites { "badname1234.com"; "google.com"};
 
 :foreach SiteName in=$WebSites do={
-    :local SiteIpAddress [/resolve $SiteName];
+    :local SiteIpAddress [:resolve $SiteName];
     :put "Site IP for $SiteName is $SiteIpAddress";
 }
\ No newline at end of file
diff --git a/scripts/v6/ch10-06-error_check.rsc b/scripts/v6/ch10-06-error_check.rsc
index 81de957..411d986 100644
--- a/scripts/v6/ch10-06-error_check.rsc
+++ b/scripts/v6/ch10-06-error_check.rsc
@@ -2,9 +2,9 @@
 :local WebSites { "badname1234.com"; "google.com"};
 :foreach SiteName in=$WebSites do={
     :do {
-        :local SiteIpAddress [/resolve $SiteName];
+        :local SiteIpAddress [:resolve $SiteName];
         :put "Site IP for $SiteName is $SiteIpAddress";
     } on-error={
-        :put "Name lookup failed for $SiteName"
+        :put "Name lookup failed for $SiteName";
     }
 }
\ No newline at end of file
diff --git a/scripts/v6/ch10-07-bad-script.rsc b/scripts/v6/ch10-07-bad-script.rsc
index b171dd9..25d3735 100644
--- a/scripts/v6/ch10-07-bad-script.rsc
+++ b/scripts/v6/ch10-07-bad-script.rsc
@@ -27,7 +27,7 @@
 
     # try a name lookup
     :do {
-        return [/resolve $WebSiteName];
+        return [:resolve $WebSiteName];
     } on-error={
         $LogMessageFunc ("DnsResolveFunc: name resolution failed for \
             site: $WebSiteName!");
diff --git a/scripts/v6/ch10-08-bad-script.rsc b/scripts/v6/ch10-08-bad-script.rsc
index 267f6ab..394799a 100644
--- a/scripts/v6/ch10-08-bad-script.rsc
+++ b/scripts/v6/ch10-08-bad-script.rsc
@@ -46,7 +46,7 @@
 
     :do {
         $DebugFunc "Looking up IP of site name...";
-        :local SiteIpAddr [/resolve $WebSiteName];
+        :local SiteIpAddr [:resolve $WebSiteName];
         $DebugFunc $SiteIpAddr;
         :return $SiteIpAddr;
     } on-error={
diff --git a/scripts/v7/ch10-01-bad-script.rsc b/scripts/v7/ch10-01-bad-script.rsc
index 0b29ef0..5863b08 100644
--- a/scripts/v7/ch10-01-bad-script.rsc
+++ b/scripts/v7/ch10-01-bad-script.rsc
@@ -3,7 +3,7 @@
 :local w {"mikrotik.com"; "www.google.com"; "twitter.com"};
 
 :foreach s in=$w do={
-    :local i [/resolve $s];
+    :local i [:resolve $s];
     :local p [/ping $i count=3 ];
     :local u [/tool fetch url=("https://$s") mode=https http-method=get \
         as-value keep-result=no];
diff --git a/scripts/v7/ch10-02-bad-script.rsc b/scripts/v7/ch10-02-bad-script.rsc
index 2c78ef9..d914d85 100644
--- a/scripts/v7/ch10-02-bad-script.rsc
+++ b/scripts/v7/ch10-02-bad-script.rsc
@@ -10,7 +10,7 @@
 :foreach s in=$w do={
 
     # try a DNS resolution of this site
-    :local i [/resolve $s];
+    :local i [:resolve $s];
 
     # try pinging the IP address of this site
     :local p [/ping $i count=3 ];
diff --git a/scripts/v7/ch10-03-bad-script.rsc b/scripts/v7/ch10-03-bad-script.rsc
index 9b8ed2f..c64f5e5 100644
--- a/scripts/v7/ch10-03-bad-script.rsc
+++ b/scripts/v7/ch10-03-bad-script.rsc
@@ -10,7 +10,7 @@
 :foreach SiteName in=$WebSites do={
 
     # try a DNS resolution of this site
-    :local IpAddress [/resolve $SiteName];
+    :local IpAddress [:resolve $SiteName];
 
     # try pinging the IP address of this site
     :local PingResult [/ping $IpAddress count=3 ];
diff --git a/scripts/v7/ch10-04-bad-script.rsc b/scripts/v7/ch10-04-bad-script.rsc
index d9298e2..5bde543 100644
--- a/scripts/v7/ch10-04-bad-script.rsc
+++ b/scripts/v7/ch10-04-bad-script.rsc
@@ -23,7 +23,7 @@
             a valid string!");
     }
 
-    return [/resolve $WebSiteName];
+    return [:resolve $WebSiteName];
 }
 
 # function to ping an IP address 3 times
diff --git a/scripts/v7/ch10-05-error_check.rsc b/scripts/v7/ch10-05-error_check.rsc
index e8e5b43..11c35ea 100644
--- a/scripts/v7/ch10-05-error_check.rsc
+++ b/scripts/v7/ch10-05-error_check.rsc
@@ -2,6 +2,6 @@
 :local WebSites { "badname1234.com"; "google.com"};
 
 :foreach SiteName in=$WebSites do={
-    :local SiteIpAddress [/resolve $SiteName];
+    :local SiteIpAddress [:resolve $SiteName];
     :put "Site IP for $SiteName is $SiteIpAddress";
 }
\ No newline at end of file
diff --git a/scripts/v7/ch10-06-error_check.rsc b/scripts/v7/ch10-06-error_check.rsc
index 81de957..411d986 100644
--- a/scripts/v7/ch10-06-error_check.rsc
+++ b/scripts/v7/ch10-06-error_check.rsc
@@ -2,9 +2,9 @@
 :local WebSites { "badname1234.com"; "google.com"};
 :foreach SiteName in=$WebSites do={
     :do {
-        :local SiteIpAddress [/resolve $SiteName];
+        :local SiteIpAddress [:resolve $SiteName];
         :put "Site IP for $SiteName is $SiteIpAddress";
     } on-error={
-        :put "Name lookup failed for $SiteName"
+        :put "Name lookup failed for $SiteName";
     }
 }
\ No newline at end of file
diff --git a/scripts/v7/ch10-07-bad-script.rsc b/scripts/v7/ch10-07-bad-script.rsc
index b171dd9..25d3735 100644
--- a/scripts/v7/ch10-07-bad-script.rsc
+++ b/scripts/v7/ch10-07-bad-script.rsc
@@ -27,7 +27,7 @@
 
     # try a name lookup
     :do {
-        return [/resolve $WebSiteName];
+        return [:resolve $WebSiteName];
     } on-error={
         $LogMessageFunc ("DnsResolveFunc: name resolution failed for \
             site: $WebSiteName!");
diff --git a/scripts/v7/ch10-08-bad-script.rsc b/scripts/v7/ch10-08-bad-script.rsc
index 267f6ab..394799a 100644
--- a/scripts/v7/ch10-08-bad-script.rsc
+++ b/scripts/v7/ch10-08-bad-script.rsc
@@ -46,7 +46,7 @@
 
     :do {
         $DebugFunc "Looking up IP of site name...";
-        :local SiteIpAddr [/resolve $WebSiteName];
+        :local SiteIpAddr [:resolve $WebSiteName];
         $DebugFunc $SiteIpAddr;
         :return $SiteIpAddr;
     } on-error={