123 Flash Chat
http://www.123flashchat.com/vBulletin_chat.html

Our 123 flash chat server software , is a full-featured& high-performace java chat server plus exciting flash chat client! It can integrate user database of external vBulletin forums or portals and has the most customized skin! It's a fast, easy and affordable way to host and manage real-time communication. We also launched 123 Web Messenger and Video Chat software, based on 123 flash chat server software.