I'd assume it works with vB.

Questions: I use EIRC right now, which looks exactly the same, is free, but requires an IRC channel/connection to be made each time.

I have it set to log my users in under their forum name. Will your chat do that as well?

Edit: Reading the installer, it looks like it does. I might have to give this a shot. In my opinion though, if you're offering a mod that has a paid-service attached to it, it would be nice if your installer would at the very least create the phrases.