Boot Camp: iMac Early 2009

Hi!

I installed Windows 7 Professional 64-bit version on my iMac. Everything is working fine though I can't seem to find the right drivers for my model.

I've downloaded 3.2 , 3.1 , and 3.0 and everytime it says that I need the previous version. I found drivers for the iMac Late 2009 but that's not suitable for my Mac, right?

Can anyone help me find the right drivers for my model?