Go to the Creative website Steve. Your user guide came out before XP drivers were available. (Remember XP itself only came out two years ago). 2000 and XP are basically the same platform, across the great divide from the earlier Win 95/98/ME.   

Oh and one other thing--looking back at your original post mentioning that your machine spontaneously reboots when you're trying to run stuff. Have you updated your antivirus software this week? Last time I had a problem like that it was a worm. I sort of thought I had updated my virus definitions, then found I hadn't. Problem solved, after a bit of housecleaning.

Especially if as you imply, GoldWave 5 is supposed to run on 98SE and the problem is unfamiliar to their tech support staff.   

If I were you, though, I'd try Pro Tools Free


System requirements

It only runs on a decently equipped 98/ME platform PC, like yours, and since Pro Tools is the industry standard professional studio software, it would be a good one to get familiar with.