clone site - meebo

I need a [login to view URL] CLONE The only thing I want to add is a widget with API to allow others to include into their website. So a private community can also have their own Chat system to interact with the other systems such as MSN,Yahoo, AIM, etc. One of the additions is to make this a Component for Joomla with a Module as the application. We need a way to make this open in a second TAB or window so the users session is not canceled. There is an opensource software for this, so find and use that and bid accordingly. Thanks.