It was asked that I post my alterations, Well I haven't tested it yet but heres my second draft. 
#!/usr/bin/perl -w
use strict;
use CGI ':standard';
use Regexp::Common qw(RE_profanity);


print header();
print start_html();

print "<html><head><title>Thanks for Signing!</title></head>";
print "<body bgcolor=black text=white>";

my $q=new CGI;
my $name =$q->param('name');
my $mail =$q->param('mail');
my $message =$q->param('message');



      print "<center><p>Thanks for signing my guestbook, your message 
+has been posted! $name!</center></p>";

# REMOVE THIS COMMENT TO ACTIVATE CENSOR $message =~ s/$RE{profanity}/
+bleep/msg;

foreach ($name,$mail,$message) {
s/</&lt;/g;
s/>/&gt;/g;
};

foreach ($message,$mail,$name){
s/\(b\)/<b>/ig; 
s/\(i\)/<i>/ig; 
s/\(\/b\)/<\/b>/ig; 
s/\(\/i\)/<\/i>/ig;
};


foreach ($message,$mail,$name)
{
s/\(red\)/<font color=red>/ig; 
s/\(\/red\)/<\/font>/ig;
};

if ($message =~ /\(red\)/i and $message =! /\(\/red\)/i) {$message=$me
+ssage."</font>"}; 


print    "Name: $name <br> Email: $mail <br> Message: $message";
open HTML, ">>../gbook.html" or die $!;
print HTML "<i>Name:</i> $name <br> <i>E-Mail: </i>$mail<br> <i>Messag
+e: </i>$message <p>";
close HTML;          
        



print "</BODY></HTML>";

[download]
I've used a couple of the suggestions so far, when I get home I'll mess around with it more. And thank you all for the comments, I found them very helpful.

In reply to Re: Looking for feed back on a guestbook by Cobo
in thread Looking for feed back on a guestbook by Cobo

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