Wrong Image on Podcast RSS Feed

I recently switched to the podpress plugin because I was having issues with my previous one. I am having a problem with the image the podcast feed is displaying in iTunes- the image displays properly on https://itunes.apple.com/us/podcast/happy-mitten-podcast-board/id654084192 and when your previewing it in my podcast app (I’ve tried both podcruncher and the iTunes podcasting app), but it defaults to the mighty mouse logo as soon as you click on it in the app. I would like to get this fixed as soon as possible.

My feed is http://www.happymittengames.com/feed/podcast/ and I’m using the Startbox theme.

Thanks,
Jeff

http://wordpress.org/extend/plugins/podpress/