Register your TB Interactive Jabber Chat Account by clicking HERE.
Windows:
http://tbinteractive.com:9090/plugins/clientcontrol/getspark?os=windows
Mac OSX: No build available.
Linux/Unix:
http://tbinteractive.com:9090/plugins/clientcontrol/getspark?os=linux
Once you've performed the initial installation, the client will automatically
notify you when updates are available. When the client starts, enter your
username and password along with the server name tbinteractive.com
Make sure the server is tbinteractive.com as shown in the picture below.

Please note TB Interactive Jabber chat is not moderated.