I just installed java enterprise studio. I am beginner on j2EE. I have downloaded duke's bookstore sample from java sun website. Now my problem is i do not know how to run it. After I clicked the compile button , a message box said "tomcat is not running correctly.". Then my nescape opened and displayed that website. But once i clicked a link that link to another page, the following error came out.

HTTP Status 404 - /servlet/bookdetails

type Status report

message /servlet/bookdetails

description The requested resource (/servlet/bookdetails) is not available.
Java Web Services Developer Pack/1.0_01-fcs

Your help will be appreciated.