I get to install iPC x86 Leopard 10.5.6 but i got 4 issues that i been searching how to solve them but without an answer:

1)Ethernet not working (i got Intel 82567V-2 built in my mother board -Intel Topfields DP43TF-
2)Audio its not working either (Realtek ALC888/1200)
3)The resolution within OSX its not full screen only shows 1024 x 720 while my monitor its 1680 x 1050
4)CPU it´s not recognized..its says CPU: Unknow ...the os its laggy i think so..don´t know how to explain like when i drag a window a side its get like messy...like if were a glitch but im pretty sure its because of that

My PC/Hackintosh is:
Intel Core2Duo
Intel Topfields DP43TF
2x2gb Ram DDR2
500gb sata for WinOS
500gb sata for OSX
XFX Nvidia Geforce 9400GT 512

Thanks hope someone can help me (:

somebody out there?