Ok, I did not manage to get the server working on Windows 7 but I got it working on my VMware Ubuntu 9.10 machine. (the instructions for Ubuntu was quite easy to follow)
Its works and plays my xvid video but with lots of artifacts and stuff.. is that a known problem for Maemo5?
Also my mp3 files does not play at all with a "server failed" error message.. you wrote in a past thread to try something else than FFmpeg.. How exactly do I do that ?