Blue Screen While Installing XP64

Hi guys, Ive been having huge problems with my friends computer which I built. I had built it and installed Vista 64, everything was going well till about 3 months in. I was getting bluescreens with errors regarding either the DLink DWA552 card, and the NVIDIA 8600GT. I figured let me switch over to 32 bit Vista because I had read about many problems with 64bit vista. So i did it and had the same problems. So finally I said lets switch to XP64, since I figured it is less likely to run into problems with an OS that has been around for much longer. Anyways while installing, I got BSOD again. The first one was an error regarding CLASSPNP.SYS and the second after I enabled PnP OS in the BIOS had no other reference to a file name. So I attatched pictures of the bluescreens, asking for your help on where to get started. Originally I thought maybe its just driver problems, but since I was installing while it crashed on me, I have no clue where to start from. I looked up the first error and saw that many people with Windows 2000 had it, and it was supposed to be fixed in their SP3. So see if you can make anything of these error please, thank you guys.

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