Is your card recognized by windows when you install it? If not, the card may be defective.
Also, make sure you are downloading the correct drivers/software for it. Creative drivers are very picky about the hardware setup. Look on your card for a number CT???? and do a search on the Creative Labs website for software for your specific card.
Hope this helps
Spec:
Intel P4 2.4B
MSI 645E Max-U Mobo
512MB DDR333
GF3 ti200 64MB
SB Live 5.1
WD 60GB
Maxtor 120GB
LG 12x8x32 CDR
WIN2K PRO SP4