Embedding newsgroup view in XUL

OK, this is probably is very, very stupid question.

I have an XUL app and in one of the boxes I would like to display the 
contents of a newsgroup, using the same content box that Mozilla mail 
uses, but without the newsgroup tree browser....

I've looked at the communicator components and XPCOM interfaces, but it 
seems that every single aspect of an NNTP connection & display of data 
is individual scripted.  Assembling all that into a working newsgroup 
browser would be a lot of work, so I'm wondering if there is some sort 
of meta-object I can call that will build the proper interface.

Perhaps this is a pipe dream, but otherwise it's far easier just to use 
an IFRAME and a server-based NNTP browser.

Anyone have any ideas?  Cut & Paste?

Thx.

Chris.