Blogger and Feddburner -> iTunes. No episodes?

[The Valeyard]

I made a blog with blogger.com (landoftegan.blogspot.com) to make myself a podcast. On my first episode, I put the link to the m4a file in the box underneath the post title (as said in http://google.about.com/od/googleblogging/ss/podblogger.htm) and I then created my feedburner feed (http://feeds.feedburner.com/landoftegan) and everything works but the link for the first episode doesn't go to the m4a file but to the post on the blog. I think this is why when I try to put in the above feed link into iTunes it sayd no episodes. Please help. Also, how do put the image for my podcast and podcast artwork in as well as the description for each episode? Not a nessecity right now, but I would like to know.