Thanks Bill, I think I have an better understanding of debugging. I had gotten IDEA to connect to a remote JVM in the BEA App Server, it was the next step that I wasn't sure about.
All I need to do next is put a breakpoint in any of my serverside classes, then run my
JUnit test from a dos prompt, when the code that has the breakpoint is reached, IDEA will stop the code and be in debug mode.
Thanks
Mark