To all of the Hear Mii fans: We are well aware of the current BOXSTr issue. It seems they're having troubles at their database. For now, the only fix I can offer you is to download the podcast on iTunes. I'm not exactly sure if it's on Zune Marketplace, but it might be there as well. You'll just have to check yourselves or maybe try http://www.gcast.com/u/HearMii/main
The crew will be discussing this issue later in the week. Please bare with us until then.