OK, Tim I've sent you an email with the location for downloading my version of your feed.
Basically the original program you were using was inserting a lot of extra text that just fouled things up. I've removed all of that. Also, it had items like your image and author info in there multiple times which must have been confusing to iTunes and the others.
So, I cleaned that up as well. Next, you were simply missing some info to help keep the feed within spec. Lines such as
http://blogs.law.harvard.edu/tech/rss are needed to keep things runnning smoothly. So, it was added.
You also had infor in both episodes that should only really be needed in your channel info at the top of the xml. Once it's there, you don't need it included in the episode info. So, I removed the superfluous stuff...
Finally, your feed was missing a guid (I think it stands for "Globally Unique ID") which is basically just the address of an episode's media file in the form of a URL. You'll want to add a guid for every posted episode.
One more thing, I've edited some of your text to make sure everything shows up properly. As far as iTunes cares, an episodes "description" and "subtitle" info are identical. So, if you edit by hand, then enter the "description" text and then copy and paste it into the "subtitle" area. In both of these fields you'll be limited to 256 characters (including spaces) so it's meant to be a brief summary of what the episode is about.
In the "summary" field, that's where you want the detailed description of what the episode is about. I think you're limited to over 4000 characters for that. It's pretty generous. So, put the full episode info in there.
Lastly (I think) you needed explicit tags for every episode. I don't think there were any. So, I added the "Not Explicit" tag in both episode posts. iTunes is VERY strict about needing these.
In a nutshell, I think that's it. If anyone else is having problems and has stumbled across this post from a "search" and needs more info, just post a question!
Oh, before I forget--you have a great logo for the show. Just really like that old wood texture. It should show up in itunes soon. within the next 24-48 hours. Unless you ping iTunes manually which is easy to do. It will force iTunes to update from your feed within minutes to a few hours. You can find info on how to ping here (look under the section on "Adding Episodes"):
http://www.apple.com/itunes/store/podcaststechspecs.html#resources
Jon
TreeLine Productions
Fort Collins, CO USA
Currently producing these popular podcasts:
"The Rest of Everest" Video Podcast *Voted as one of iTunes' "Best of 2006" podcasts
*Nominated for "Best Video Podcast" in the 2007 People's Choice Podcast Awards
www.therestofeverest.com
"Beyond the Movement: The Pilates Podcast"
www.thepilatespodcast.com
