Follow this link : http://omgili.com/card-creative-kext-osx-sound

There is a great deal of discussion on your sound card drivers. Remember that these kexts are "device ID" sensitive and you may have to edit them in order to make your particular card active.
I have two SB Live cards and both work, but only the front channel works, there is no fix for 5.1 surround sound at this time that I am aware of.

---

OS : Snow Leopard 10.6.8
Motherboard : Gigabyte GA-M68MT-S2
CPU : AMD Athlon II X4 645, 3.11 GHz
RAM : 4GB Crucial PC3/16000 DDR3
GPU : nVidia Geforce 210 1 Gig Full Hardware Acceleration
Sound : Onboard Audio Realtek ALC887
LAN: Sonnet Gigabit PCIe Ethernet Controller
Monitor : Acer S231HL 24" Wide Screen 1920 x 1080 @ 60 Htz
USB: Keyboard/Microsoft Confort Curve 2000 - Mouse/Logitech M185
Bluetooth: Apple Magic Tracpad/ DLink DBT 122 Bluetooth Dongle