Follow Up
As a follow-up, I have left negative feedback for the seller on the iOffer site and filed complaints with both the FTC (per iOffer policy) as well as the BBB. He is now telling me that I have MYSELF open to a lawsuit, which I don't understand at all. I have a wealth of documentation...
I ordered software from a seller on the iOffer website which was advertised as "new" and the "full holographic version" of Windows XP Professional. Holographic basically means it's a legitimate copy directly manufactured by Microsoft. The software was listed as OEM, which means it must be sold...