A driver set to one of those should work, as all those cards used the AU8810 I believe. You can look around on here and see if they have what you need:
yeah I found that site with google, but it doesn't host any drivers directly, it links to some Russian site which in turn links to a whole heap of FTP sites... and pretty much all the links there are broken 😠
EDIT: I've managed to find some drivers but none of them worked. They always hard freeze during installation, when windows detects the 'Aureal Vortex PCI Audio' device. On rebbot it says in device manager that they caused the computer to stop responding so Windows will never try to start the device again.
I've fiddled with BIOS settings, tried different PCI slots, fiddled with ACPI and PnP options, disabled all my parallel/serial ports etc, edited the drivier INI file to disable bus detection and all DOS support - even reinstalled Windows 98 and tried the unofficial service pack, still no go. I've even got a second identical card and it does the exact same thing. Motherboard is Abit BX6 rev2.0, latest BIOS, 256MB SDRAM, Leadtek Winfast S320 II (Nidia TNT2)
I've given up on it I think. I'll just stick a sound blaster 16 in there!
I'll upload the files I found to the drivers site, maybe someone else will find them useful one day.