No media found

I am trying to set up Seriously Simple Podcasting using Advanced Sermons sermons as the feed, but I am missing something. The way the feed is constructed no validators can find media files. I can see the files in there but they are embedded in a single item with an XML tag: “Episode List” instead of distinct items in the channel, which is what I am used to seeing. I’m looking through the docs but haven’t figured out what I’m doing wrong yet. It feels like a configuration issue.

The page I need help with: [log in to see the link]