Since the Joomla 1.5.15 release, many users have had problems.  This is because the fine joomla folks updated to the MooTools 1.12 release but we didn't catch that little change until well after the 1.5.15 update was actually released.   

If you're experiencing problems with the Stable release below... please try this beta and let us know if it solves your issues.

We've also implemented an initial solution to the speed of the chat on some servers.   Again, please give this version a try if you have unusually slow chat response.

On SOME systems, this version produces a doubling up of some of the chat window responses.  If that happens, please know that we're aware of this and we're working on it for the next stable release.