Here's the solution w/ aureal and WinXP (what I did to get it working)
Install WinXP w/o the sound card
(reason: the first time u load windows it willl play the opening noise and other noises..all of which has the potential to lock up the computer..for mine it would lock up and reboot automatically)
Install WCPRSET and WPCREDIT
Install sound card, boot into windows it autodetects and loads drivers
wun wpcredit and find out which pci device it is
go into wpcset and select taht device, and change the register 40 into FF instead of the 80 is currently is (or was it change 80 into FF instead of the 40 it already was can't remember)
reboot done
AND DONT install the updated aureal drivers on windowsupdate, they just removed features cuz they couldn't figure out how to fix the bugs.
You won't have 4 speaker out but you can dl ac97control do enable it, but you will have to enable it everytime and all it does is link front and rear outputs together w/ independent volumes, it's not 4 individual channels (as witnessed by trying to play a surround sound dvd)
Also, you will not have a3d support, you will have to go to an older win2k driver and then forcefully isntall it into winxp (it's complicated)