I can do an example.
If I'm breaking any rules, just let me know and I'll figure out where to stop.
www.xat.com/main << This is a chat group that uses Xat's web page editor which can add sites to their groups.
If you scroll down, you will eventually notice there are 4 black tabs that read "Wiki", "Community", "Comments", and "Rules".
By default, the "Wiki" tab should be open, which is a decent example.
The page you see in the tab is an actual site, which is embedded into the tab, which is on the chat group site.
What I'm attempting to do is to put my forum site there, which I'm assuming requires some sort of html or embeding code for the forums.
(Not adding it to that specific chat group, adding it to my own)
Their page editor uses html codes and embedding codes to add content to their web page tabs.
It basically works exactly like smfforfree's webpage editor works, so that can be used as a reference, if you are unfamaliar with Xat's webpage editing methods.