Did you try the mobo manufacturer's site? If it's a very new motherboard it possible that there is no Win 98 support.
The motherboard is P5Q-pro. I've been looking mobo site and even realtek site, no luck. I was hoping for somekind of hacked drivers
Sorry, but IMHO no way are you finding Win '98 support for that mobo, and definitely not for the sound chip since it is brand new. Realtek doesn't even post reference drivers for it.