I believe the only people to make XP drivers for the Aureal cards was Microsoft, and they should have installed by default when you installed XP. Don't use the Diamond drivers, as they haven't updated then since about a month after the card was released.
I looked in you system rig, and noticed you have a Via chipset. Aureal cards and Via chipsets had major lockup problems when used together, unless you changed some setting or another with some H-Oda utility. That is most likely what is causing your lockup problems. (H-Oda is the same guy that makes WCPUID. The utility you need is calledd WPCredit, if I remember correctly, but don't quote me on that. That's why I didn't mention a name in the diagnosis.)
Russell "Mr.BIOS" Sampson