I've done as you said, [nWo] Filth. And now I can at least create a dedicated server, and join it myself.
But, I've tried to create a server lots of times now, but... as soon as anyone joins(me or someone else), the server goes mad and sends about 1000000000 copies of this message:
HOW TO DEAL WITH THIS???
NOTE: This problem is actally quite similar to the problems I had with JO 1.04