How did you install it? Stand alone program, through SDC or Impulse?
Have you in fact uninstalled it yet? If so, did you reset you cursor back to Windows default first?
If you installed it originally as a stand alone you should be able to use Add or Remove Programs from the Windows Control Panel. If you used SDC or Impulse you can use the same program to uninstall.
You should run a clean up program like CCleaner after you uninstall it. Be sure to run a Registry Cleaner if you have one. One comes with CCleaner. That should remove and traces. If not go into the HD Directory find where it is then delete it from there.
Hope this helps.