Are you sure that it was Vai who recorded it for the movie ´cause I think it´s some other guy. But I know that you can find E.T.B. on one of Vai´s new CD´s.
PS. Vai got the role in the movie thanks to his song from one of Flex Abel CD´s called Attitude Song. Have you heards a song called Litle Green Man by Vai. That one is really f*ucked up.