You'll have much more luck at
ThreadsDev. <img src="https://www.ubbcentral.com/boards/images/graemlins/smile.gif" alt="" />
Do beware that most web hosting providers strictly ban the use of server-side chat software, so you'll want to make sure that this doesn't violate their terms of service... (Shoutboxes are usually OK, but full chats aren't.)
Also, FYI, there is already a shoutbox built into things such as IIP... however, it uses the existing database. (It uses a hidden forum for data storage...)
