Voyetra has released a BETA driver for the Turtle Beach Santa Cruz card v5.12.4193 for Windows 98SE/ME/2000/XP.

Win 98SE, ME, 2K, XP (NOT for Win 98 plain) WDM v.4193 Release Candidate WDM

Turtle Beach Santa Cruz Driver v5.12.4193 RC for Windows 98SE, ME, 2K, XP 06-27-03