It appears that something happened with the new Itunes store. The feed is still working but for some reason it won’t update the itunes podcast listing. It will show previous podcasts and allow you to download those through the podcast menu.
So, if you resubscribe to the feed, you should get a listing of podcasts 43-49 with GET buttons, as well as any new podcasts, which I am aiming for on Monday.
Hopefully between a wordpress and podpress upgrades, the rest should fall into place. Otherwise, I may have to create a second RSS feed to address the issue.