Installed Snow Leopard with a few kexts.
 

Ok.. I just installed Snow leopard and i boot with arch=i386 to get my network to work.

Here are the kexts i have downloaded:
FakeSMC v2
OpenHaltRestart
PlatformUUID
NullCPUPM
Nvinject
VoodooHDA
PS2

Is there any other kexts i should download to get a fully working snow leopard?

Here are the problems i have:
Airport not working in 64bit. And airport losing networks after a while on 32Bit.
Getting Sleep after Restart problems.
Slow Startup
Changing Achi to RAID problem.
Thats All!

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2.2 GHz Intel Core 2 duo
3GB Ram
Geforce 8400GS 256MB
D-Link DWA-547
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Card type: Airport Extreme
Firmware Version: Atheros