S.O.S.S.S.O.S

If any business mavericks happen to read this blog I'm dying (literally) to know if I need a U.S. taxpayer identification number in order to claim profits from US iTunes from within the UK. Or pretty much anything anyone can tell me about IRS form W-8BEN (certificate of foreign status of beneficial owner for United States withholding tax). I thought I'd be a hero and try to sort of the record label's international tax problems, but I think I'll just go play video games and hope that they fix themselves.