A very clever ploy... unless the fraud is discovered two days after John Kerry wins the election.
The simpler, and thus more likely explanation is that some overeager Democrat forged the documents to help John Kerry. Perhaps our eager beaver will claim that he or she was merely "recreating" documents that "had to have existed at one time". This is much more likely than a Karl Rove, double-pump, head-fake-to-the-left, end run around the right, inverse triple sting with a full twisting somersault.
I've said it on here before, this had to come from someone in the Democratic party and the Kerry campaign. Who else would have such a motive. And, when I heard Geraldine Ferroro (sp) say it could not be the Dems, that told me it indeed came from there.
Find someone that has a history at a Dem spoof or anti-Bush spoof site, a more radical element in the Dem party and associated with a group like MoveOn and you will be zeroing in on who it is.
My money says someone like Zach Exley is behind it. Someone like that certainly will at the least have a good idea where it came from if not knowing for certain.