Here's a petition for Creative to release the source code for the Aureal Vortex/Vortex 2 driver so that the Linux guys can perfect their driver, and possibly someone will then be able to port the driver over to OS/2...
http://tectonix.co.uk/petition/
Please everyone, join the petition...
Note: This site also make a reference to this linux project that had made some Aureal Driver
http://sourceforge.net/projects/aureal
Source: OS2VOICE