At this point in the game I am telling everyone that sends me a e-mail asking how to get in Apple iTunes to call Apple, and complain. I have been trying to get a specific feed since they launched into the directory ,and have had no success. So I am at a loss also on how to get a feed that has been submitted to show up..
Podcasters have not helped the situation by doing some things that look pretty childish. Along with that some shows are listed more than a dozen times. They need to do a little house cleaning and get the directory squared away.
Be forwarned though if your hosting provider goes offline for a couple of hours it is likely that you will be removed from their listing.