About BPG Tinychat

Hi, a silly question but its important to me.
I´m hostgator client and they dont want chat software in their client accounts. But, i think tinychat dont take any resources of my host, is only a tinychat.com frame. That is ok or i can have an overload on mysql or server resources? many thanks for your help,
Roby T.

http://wordpress.org/extend/plugins/bp-group-tinychat/