Java EE (Java Enterprise Edition) General Discussion

Hi
I have created a servlet in JBuilder that has a form. Whatever value is entered into the form is passed on as a paramater for a several other classes in another package that search a website and parse information.
The servlet is dependant on a couple of jar files.
When I tried to get this servlet working outside Jbuilder (on Tomcat or on a web host I have an account with) it wont work. I keep getting an error that it cannot find the servlet class after I hit the submit button on the form.
What do I have to do to get a servlet I created in Jbuilder to work on the web or in Tomcat on my own PC.
Thanks
Brian