Looks like he has the first episode available to stream on his blog in his signature
http://www.yenlingbonsai.com/
For others who have no idea what Podcasts are - they're basically radio shows that are posted on the internet. If you have an semi-recent iPhone, you have a podcast app installed. If you have Andriod, I'm sure there is an app to download. You can also listen to them from iTunes, or usually directly from the podcasters site. And the best part... they're free!