I've added a new RSS type now, that gives itunes podcast 1.0 output. use ?ver=pc1.0 to get the result, works on a file gallery. Check the output of http://tikiwiki.org/tiki-file_galleries_rss.php?ver=pc1.0
I'm trying to add a special type of file gallery right now, podcast (audio) and podcast (video).
What I hope to have later: file galleries that automatically give you podcast rdf if you click the RSS icon and a link you get after a file upload that's name like "Blog this!" or something, which lets you choose a blog you can comment the new gallery entry.
Is this the way it works? Or is the blog needed if the file gallery delivers the correct rss data already?