Did u install "dos support" drivers for your live card?
Mines used to work when i had win98. Once u have them installed...u goto device manager and look for "sb16 emulation" or something...look under properties ...and check out the port/irq/dma ....and punch them into dos games "setup"...and they should work.
try a dos game that auto-detects your settings (such as original warcraft 2)....if it works it'll mean you have the sb16 emulation definately installed. Then u just have to go figure out the settings manually.
good luck.