This one works! I tried the other ones listed for 2000 and XP, they were for NT 4.0 and do not work. After unzipping to a folder I named DT Audio I pointed the hardware found wizzard at the folder. It found it OK, then I rebooted and ran the setup.exe file. All of the other drivers loaded flawlessly.
Don't waste your time on the other drivers. This is the 2000/XP driver you need for this old card. My client is happy now.