However, in the iTunes settings window in PowerPress it still shows the old feed address (MobileMe) where it says "Update iTunes Listing", and it says "Last updated November 15, 2010"
What you need to do is go to the itunes tab in your powerpress settings and at the bottom of that page, there is "iTunes New Feed URL". In that section you need to put your new feed address for itunes (
http://thehealthyskeptic.org/feed/podcast/). Then click the "test update iTunes listing" checkbox. and then "save changes" at the bottom of the page. When you hit the save changes, you will get a notification at the top of the page that says "iTunes Ping Successful. Podcast Feed URL: " If you get that, you are all set.
When I ping iTunes from within the iTunes panel in PowerPress settings it directs me to the generic home page of the iTunes store instead of telling me what feed iTunes is pulling. What's happening? Do I have to wait until I publish a new episode for it to update the iTunes feed? Why doesn't the ping work?
It looks to me that Apple has changed the URL to that ping page. We will look into that and fix it for the next version of Powerpress. As for updating your Feed URL with iTunes... It will have no effect on any of your feeds. All you are doing is telling iTunes where to find your podcasts. You are not changing your feed address on your site.
It will update the date and url in the itunes tab once you put up another episode.. Itunes can take a few hours to a few days to get everything updated on their end.
After you have done everything above, try re-subscribing in iTunes and make sure your feed is up to date with them. If that doesn't work after a week or so, we can try a 301 redirect of your old feed (if you have access to the old webserver)
-Mike