Some bad news I'm afraid. I've been very busy recently so haven't had any time at all to keep testing the OpenFire library and client against XFire, and it appears that a protocol change has been made while I have been away that has made the current version of the client unusable. It wasn't a major change, it appears that some extra information is being stuffed into some previously unused space that was part of the port declaration for games your friends are playing. Once I spotted this it was an easy fix, though I am intrigued as to what this new information is.

I've committed the change needed to make everything work again. Unfortunately I don't have time to properly test it all before doing a point release, so that will have to wait until I next get a spare hour. If you're desperate to run it, your only option for now is to check the code out and build it yourself. Apologies :(