Microsoft Office Ultimate 2007: Deal for Students (Download) 

Description

You must have a valid e-mail address at an educational institution ending with the domain suffix .EDU (ie, leina@contoso.edu) OR have a valid email address at one of the educational institutions listed here.

AND

You must be a student at a U.S. educational institution and must be actively enrolled in at least 0.5 course credit and be able to provide proof of enrollment upon request.