Save your IO80211Family.kext, then run the 10.6.8 combo update (you might need to update your EDP too). If wifi won't work, replace the mentioned kext with Kext Wizard.
Yeah, Leppy's package has that kexts. Trackpad scrolling not works, and it recognised as a mouse. Here's, a direct link:
http://www.insanelymac.com/forum/index.php?act=attach&type=post&id=67985
You may need ApplePS2.kext
I think he is working on it now. I have an AMD hackintosh too (Athlon X2) which works fine in Snow Leopard 64 bit.
After a legacy kernel comes out, I'll test it immediately