Indeed he does, one tone above Martin Carthy's CGCDGA, from whom he got the tuning. He also uses a standard set of strings and that top B is a mite floppy.
I met Alistair when I went to Oxford FC, purely because he was collaborating with Swarb. I was really impressed with Ali's guitar playing, singing and songs and now I regularly perform his "Song of a Drinking Man's Wife" and "He Fades Away", but on bouzouki.