Download WMP Podcast Plugin
You can now download the plug–in. It's still in beta and comes with no guarantees, so use at your own risk. If you find any bugs, etc please let me know.
You must be using IE 7 (Beta 2) for this to work. The plug–in uses the new feed subscription feature of IE 7 to pull in podcasts. Subscribe to feeds within IE 7 and make sure you check the "Download attached files" box – this will make it download podcasts.