"The FSP helped turn NH from 'red' to 'blue'."
I think it was more of the "Massholes" migrating north that has turned NH purple.
I personally know of a number of people who voted DEMORAT as a response to the 'invasion' of Free Staters. Benson was attacked on talk radio a number of times because of his 'support' of the FSP (although the scandals swirling around him didn't help, either). There were a number articles in local newspapers discussing this phenomenon, as well. Of course, I don't consider newspapapers a terribly credible source. Natch, many of the DEMORATS came from Mass, as well.
It was the massholes with the help of MoveON who targeted NH because of the liberal same day voter registration laws without specific language vis a vis, identification which allowed Mass residents who owned seasonal property in NH to vote. Their vote in Mass was redundant so MoveOn could use these criminals to vote in a state not of their legal domicile. NH must change the registration and ID laws before 2006. I think it very unlikely however.
I used to think the same way, but check the results. The southern tier (along I-93 & Route 3) was more Bush than Kerry. I would expect that those fleeing from MA would be more likely to settle in Hillsborough and Rockingham counties.