Hello, I worked in Alabama State in the United States in the summer of 2010. Now I was trying to claim the tax back.
Do I just need to mail these two forms,namely1040NR-NZ and Copy B of W2 to Department of Treasury, Internal Revenue Service Center,Austin, TX 73301-0215?

You can use Free file software. Go to Internal Revenue Service (http://www.irs.gov) and click freefile under Filing and Payments.

But I need to fill in 1040NR, can free file do it? Because I only find 1040 available on it:(