heh ISA may be old but it still works great. I'm using all ISA NICs, not only do they work but the ISA bus runs waay out of spec with no problems for me
I checked out the ESS homepage for ya, and they have nothing good there. Apparently they make the chips that power your board, but not the board itself.
Are there any other brand names on the card? Do you have all the drivers installed and ready, so all you need is an app to play the radio? I searched for a radio-playing utility but I have no idea what to search for!
As monster of Rock suggests, the original manufacturer of the card would have included/developed the software and drivers needed to run the card. Perhaps emailing ESS for a list of the manufacturer that have used that chip might help, or do a google search for card brands that have that on them, cross referenced with a list of card brands that also use the tuner,,,, etc