Can you give us any more details?
Because the following is the best I can do with the details given:
-Did you install the drive from the Creative website?
-Is the soundcard compatible with your operating system?
-Does the soundcard work with the default windows drivers (ie without installing the creative driver)
-does the speaker work? Do you have it plugged into the correct connections?
-Is the soundcard new or old? Does it work in another computer?