If you need any help with JDistUnit, you can write me an email and I will see what I can do. Please keep in mind that I develop JDistUnit in my spare time, so a little bit delay in answering could occur.
I also appreciate any feedback! JDistUnit is a somewhat experimental approach to load/stress testing, suited to my personal tastes. I would like to hear what other people are thinking -- the good, the bad and the ugly.
In particular, I am thinking about the mobile agents approach. While hot deployment is surely a nice feature (especially when compared to other deployment mechanisms), the requirement to embed the test action into the agent can be seen with scepticism.
And with that, thanks for trying JDistUnit, and have a good day!