Which version of tomcat to use with JBuilder 4.0(Foundation)?

[qingjian du]

I want to install the tomcat servlet, and I have installed JBuilder
4.0(Foundation) on my machine (WinNT). I just wonder if someone knows
the version of tomcat (build) I need to install. I tried tomcat 3.1, but
failed to run it.

Thanks in advance.

Qingjian