I am starting to get into Servlet's, I hear they're a very useful tool in web development but I have a couple questions, maybe one of you will know the answers...

1) Does anybody have the Servlet's actually installed and working on their computer? If so, how? I Downloaded the JSWDK from Sun's website... it's for Serlvet and JSP classes, I unzipped it and installed it on my computer.. I think I set the class path correct but wonder what others may have set the Class Path to. The problem is... whenever I use JBuilder or try to compile something, I get class Servlet cannot be found of the import.javax.servlet in red (JBuilder).

2)Servlet's seem similar to Perl/CGI, PHP and the other server scripting languages. what's the difference that sets Servlet's appart??

Thanks for any feedback.