All you need to do is copy the HTML code given to you when you created your chat room, and then paste it onto your website. Or you can use the direct link feature (also given to you when you created your chat room).
I’ve tested the direct link which was a success. However, the one with the banner wasn’t. I simply took the code off the page and copied it into the angelfire editor. Not sure what else one would need to do. It can’t be that hard.