The combination:
Java 1.4.2 + Tomcat 5.0is perfectly
OK and tested many, many times.
If Tomcat 5.0 starts, you must have simply unpacked the dimx package in the wrong place, or forgot to preserve the folder structure while unpacking the ZIP.
I'd have stopped there and tried to look closer at the URL you typed, things like that.
Normally after seeing that Tomcat runs, you simply add /dimx/ to the base URL to obtain:
http://localhost:8080/dimx/this would bring up the dimensionex main page / menu with links to all games. They are supposed to work right out of the box. If not, you have to check where the
multiplayer.class file is located, exactly, on your PC, and report this information.
I think this will be enough to solve it.
If you try
Tomcat 5.5, this one is
not designed to run on Java 1.4.2 so you also have to
upgrade java to 1.5 (also said, on the java site, Java2 ver. 5.0, they seem liking to confuse people)
So I actually recommend you to simply uninstall tomcat 5.5, revert to tomcat 5.0.28 and try to diagnose where the problem was exactly - it doesn't have to be difficult.