It's an awesome song. Ever since I first heard it I've wanted to figure it out, but first I need to find out what tuning he's in. I'm 99% sure its an open tuning, probably E or G. If I'm able to figure it out and make tab, I'll let you know--but I can't guarantee I'll be able to do it.
Sorry, I don't know the tuning, but please please try to tab it, it is an amazing song.