My understanding is that if you bought in 2008, you are still eligible for the 7500 credit, which must be repaid. You still get it. It is repaid over 15 years.
Those who buy in 2009 are eligible for up to 8,000, and it does not have to be repaid.
Congratulations on your home purchase!
I have a post coming out about it tomorrow on my blog. The link is below. Check there tomorrow.