I am currently using your van2shout plugin but made quite a few changes in it. Not sure if you are interested or not but I can send you a copy of what I have when I am finished.
Here are some of the changes I made:
-Added some css to improve the looks a bit
-changed the way it works to use the user id in the backend rather than username
-changed the ajax calls so that it only sends updated messages rather than resending the whole chat so that users can save bandwidth and have faster response times
-created a busy object that will keep users from getting double posts or double returns
-set the box up so that it is a fixed 300px height and scrolls
I am currently testing these changes I a made and am testing the security on it. If you are interested, shoot me an email at admin@chaozrebellion.com and I can give you access to see the plugin.
Your plugin is awesome by the way. Thanks for making it :)
David
January 10