I would really like to do this too ... (I am a dummy as well...)
What I would like most in the world is a MediaWiki extension that turns the 'tak' page into a punBB forum, allowing a threaded discussion board behind each page.
Would this be possible with 1000's of pages?
Each talk page would be like "Index » Page Name" with discussion threads being "Index » Page Name » Thread". This would all take place within the 'talk' tab of the MediaWiki talk page, with the 'Index' link above leading to a 'Special' page listing all the different 'forums' (talk pages) on the site.
Is that what everyone else is thinking? So far as I understand it the majority of the current discussion has been of the nature 'how do we synchronize login', but I am not sure if the question of 'how do we put PunBB in a MediaWiki page' has also been considered.
Thanks for the brilliant software, and thanks for the great ideas!