Drivers for my sound card

Last night, I installed Windows 2000 for the first time. But since then, the sound card stopped working. Before that, I used to use Windows 98, but I didn’t have any problem with my sound system. I checked device manager, and it said the drivers areunknown. So I need to reinstall drivers for my sound card, but I can’ find my sound card drivers for Windows 2000 on any websites. My sound card is GVC D-1156IVT1/R5, HP Model 90079 for Pavilion PC, modem-audio card MDMSM9098-434, 90079-2 “Chameleon” I tried both HP website and manufacture’s website, but they don’t have drivers for Windows 2000. Would you help me fo find right drivers?