Vista + My System = Headache. Please Help!

OK I was wondering if anyone can help me. I have been trying to find drivers (If they exist) for Vista for some of my parts for my computer. These are the following parts:
Motherboard: ABIT AV81.5 socket939 K8
Sound Card: Creative Sound Blaster Audigy2 ZS 7.1

I was wondering if anyone knew where to find the drivers for these parts because my problem is that when I attempt to install World of Warcraft, after I have installed Vista on my computer, at a certain point in installing either the main game or the expansion it will give me a CRC Mismatch error, and I have installed and am currently playing World of Warcraft w/ the expansion on Windows XP right now. So I know it has nothing to do with my memory or hard drive. What I am theorizing though is that my motherboard or my memory or something related has to not be up to date with Vista. I was just wondering if patching these parts with drivers would fix it.

Thanks for the help and sorry if some of my questions are stupid I only know a few things about the insides of my computer, but nothing advanced.

My video card is a GeForce 7800 GS OC I just bought it a couple weeks ago because my old video card went out, but I just use the drivers I found off Nvidia's site. But I didn't reinstall them after I did the clean install though because it seemed to be running fine.

Yes I too had a problem with installing WoW on Vista and found it was permissions but it was different to yours, you can always try it I guess or try setting permission elsewhere.

First turn on hidden files then go to C:\programdata\microsoft\windows\start menu\World of Warcraft. Then set the security on the folder so everyone has full control. I think it was trying to re write a file and if you look you can see than Windows only gave most things read control over this file.