It's been a puzzle to everyone (including me): why won't iTunes do what it's supposed to do with my podcasts?
I hope I've cleared the issue up by creating a blog specifically for the purpose of podcasting. You can view that blog here. If you'd like to subscribe to that blog in iTunes, click on the orange button on the upper right part of the page (the Subscribe Now! icon). That will take you to the Feedburner feed, which gives you several options for subscribing.
Or I suppose I could make it really easy and just provide a link here
And it's a long process, but I'll also work on getting the link to the podcast in the iTunes store straightened out. Let me know if things still aren't working!