I know you sent me that link just to annoy me, right? :) Okay, here is what you want to know.
It is impossible to ascertain the breakdown by party ID, but you can glean the following. According to this poll, McCain had stronger support from Republicans than Obama did from Democrats. He also did slightly better among Democrats than Obama did with Republicans. Obama supposedly does about eight points better among Independents.
Now, here is what actually happened in 2004 in Montana:
R39 (95-5 Bush)
D32 (78-21 Kerry)
I (46-46)
Bush won the state by 20 points. He actually outperformed the predicted exit poll result (as reflected in the numbers I just posted) by 1.5 points. Note that Kerry got only 78 percent support from DEMOCRATS in Montana. Oh, and the state is 95% white.
Any questions?