I already do that.
I've tried messing around with the raw file, and I can't get it much better than the version that I uploaded, unfortunately. When I listen to the posted show though, the audio doesn't sound that different to me, except for Ben being a bit quieter, and even then, listening on my PC with the Windows volume at 100% and the volume control on my speakers at around 50%, Ben is audible, albeit still quieter than I am (and quieter than ideal). Are you all listening on PC with speakers, or are some of you using headphones, iTunes, or mobile devices?
Anyway, apologies again that the audio is a bit off this week with Ben's volume, no one's more frustrated than us when something like that happens. As I said, I'll be sure to double-check that in the future and make sure everything's fine before we get into doing the show.