Needs to update to LW 5.2.13 to fix the facebook issue. This issue was fixed in this version. http://wiki.limewire.org/index.php?title=Changelog
As for XP, I use it via running Paradox on my OSX. The advantage is I don't need to reboot to run windows, and runs in its own window.

thanks, but i checked the version of limewire he's running and he does in fact have 5.2.13 for OSX. Is there any kind of update he can download?