i think the latest i read says that creative labs are not releasing the schematics to the card so alsa can try to devolpe drivers for it. So alsa is having to reverse engineer this card and they just don't have the time for that right now.
So i would go to the creative labs forums and ask them for a linux driver and get you friends to help bug creative labs for the stuff alsa needs.
Do a google search on alsa and you will find the alsa project where you can read all this.