Podcaster (iPhone) password-protected feeds

Specifically, Giant Bomb and Tested. I asked on the GB forums and on the Podcaster forums and got no response, and I know a lot of people here go to the Whiskey sites too, so I figured why not try here.

Is anyone using Podcaster to subscribe to the members-only video feeds? When I try, it just asks me for my username and password over and over. I enter them, and it just asks again. Eventually it gives an error message saying the data length was 0. The link I"m trying is http://www.giantbomb.com/videos/feed/mobile/, but you need a Whiskey subscription to access it.

Anyone happen to have this working?

I got this working through a somewhat arcane set of steps. I’ll write it up if anyone needs to know.