I am non resident allien that need to recover backup withholding from the IRS, What form should I file?

I sold some of my mutual funds in 2007 and the investment company deducted 30% as backup withholding tax becausemy W-8 was expired and I did not renew it before the transaction. How do I recover this money and how? Which forms I should file to the IRS? 1040NR and any other?

Yes, you will file your tax return to get the taxes witheld. A nonresident files Form 1040NR or 1040NR-EZ. These forms can't be e-filed.