iTunes is using the feed at
http://www.reluctantradio.com/oaks.rss
although both seem to have the same content. The latest episode, dated today, is in both feeds and is visible when subscribing. You can't really expect it to appear in the Store so soon: it usually takes 1-2 days for a new episode to appear. It should appear in a day or so as the feed appears to be OK.
However the feed iTunes is using contains the 'new-feed-url' tag to redirect iTunes to the feed you link to, but it is not having an effect. This is because the second line of your feed is incorrect. it reads
<rss xmlns:itunes="http://www.itunes.org/dtds/podcast-1.0.dtd" version="2.0">
and it should read
<rss xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">
(.com not .org).You need to correct this, then the Store will redirect to the new feed in a day or so. Leave the old feed in place for a couple of weeks for the benefit of subscribers.