I know is sucks to see a reply to your post and then find it doesn't answer your question. I'm sorry, but I want to just let you know that you aren't the only one. <version type="short">Years ago I was involved with podcasts.</version> And there were dozens of podcast clients being built every day. Then iTunes started to handle podcasts and all the podcast clients withered on the vine. Actually, I don't think it was all iTunes, but instead, I believe, IMNHO (In My Never Humble Opinion) that people were not tricked by the marketers. By that I mean that marketers invented "Podcasts". Up until then people called them.... wait for it.... "A u d i o f i l e s"! People would make these "audio files" and put them on a "server" where people would "download" them. Marketers put and end to that and made sure people "subscribed" to "podcasts" that were "attachments". Umm, no. People rebeled, didn't "subscribe" to podcasts with podcast clients, but instead, went to websites, downloaded mp3 files and played them on their computer or portable music player. And when Joe Six-pack and Plain Jane don't buy into the marketing hype, stuff dies. And in this case podcast clients died.
I suggest you use your web browser's ability to subscribe to RSS feeds, subscribe to the podcast, download the mp3 file, put it on your player, and leave it at that. This is what I do after spending a few hours a few weeks ago looking for a good podcast client/player/radio (free or pay) and not finding anything that wasn't abandoned several years ago.