Chaintech AV-512 (C-Media CMI8738) 64-bit Drivers

Anyone know where to get any? It's a sound card in my file server that runs Vista Business x64.

Got it from NewEgg here: Newegg.com - CHAINTECH AV-512 5.1 Channels PCI Interface Sound Card - Sound Cards

Chaintech's website is useless and can't get chipset drivers from C-Media (only have up to Windows XP). It worked in Vista Business 32-bit though.

Hello, i just got this sound card a couple days ago. I'm running Vista Ultimate 64 bit.
I was wondering if you ever found a solution to your problem?