Following the download link ultimately redirects to a dead archive.org page.
Is there still a way to listen to these episodes?
We did in fact forget to pay the SoundCloud bill at one point. (Or rather they caught on to just how much we were uploading and told us we had to start paying.)
Once we upgraded, all the old tracks came magically back. (This was six months ago, but I'm closing the loop on this post anyway.)