I've looked at some of the Chat Apps available for XOOPS then went searching the web and came up with:

ZZ Flashchat

It could be adapted to XOOPS by some of the skilled individuals who hang here. This App has ready made php plug ins for Who's Online, MemberLogin (through others sources), Time Managers, and other goodies. It runs on sql with a two table structure. Those interested should have a look, it is GPL and includes full Flash source etc, etc.

Only thing i don't like this chat is the Popup window usage which is likely easy to change.

Regards
rocket98

Hey Rocket.. what you want is FlashChat from tufat.com
http://www.tufat.com/script.php?id_num=2
Never mind what the features list, it is 100% integratable with XOOPS and has simple instructions included to do so. For $5 you can't beat it.