It's not one election. We're making gains in registration.
This is a state where both chambers of the state legislature are comfortably Republican, and where the GOP governor got elected with a double digit margin.
Governorships don't necessarily have anything to do with the state in question, nor legislature. I have not seen registration statistics updated for the latest election. That's the only thing I'd consider looking at.
In any case, I think much of it was Bush's hurricane help. I expect a minor Republican advantage.