It's working fine for many, and the people who are working on the LW project (paid and volunteer) usually know what's going on. Connection problems usually turn out to be individual system problems, or like me, ISP related. If there were a major bug in connections, there'd be a 100,000 users who'd be writing, not 10, right?
If you are running 10.2.3 you missed the Mac OSX java update and quite a bit more. Running Apple Menu->System Preferences->Software Update should help (I usually repair permissions after major updates too). 10.2.6 is up to date today.
If you need to troubleshoot your system,
http://www.macattorney.com/tutorial.html is pretty useful.
Cheers
Once you've upgraded your system an LW, post back and there's lots of good people willing to help get you sharing with whatever app you want.