If you've enjoyed the Iron sharpens Iron radio show, there's a very good chance the mp3 recordings will not be available for much longer. I suggest visiting the site, and downloading those shows you find interesting. There certainly were a number of great shows!
For the last few years I've worked behind the scenes to make the recordings available. Unfortunately, doing that requires $$, and like many of you, I've had to make cuts in my expenses.
I'm not exactly sure what the status of the show is now. Hopefully, at some point, the show will return.