Proteva CPU PCI only run w/win 95

Where can I download the device drivers for this PCI device. I purchased this computer from my neighbor who bought it from Home Shopping Club. Proteva is the manufacturer. The PCI device controls the sound, fax, media everything. I formated hard drive, upgraded to Win 98. Then I found out it wasn’t compatible. So I reformated again & put win95 back on. Don’t know anything about the pci, what drivers to download for it. Should I go purchase another pci card or look for the drivers for thisone?