There's something weird about your RSS feed. I can't seem to actually download any episodes using Zune (which is what I use for podcasts)

Have you tried running your RSS address through feedvalidator.org?

It comes up with as a valid RSS, but it has some issues that need to be cleaned up that may prevent some people from being able to download your episodes.

I only know all this because I started up my own Retro Video game podcast about 7 months ago, and getting the feed cleaned up was a bitch.