That is indeed very strange, it seems that comodo safe surf brings some serious bugs for some people... If you can't find the uninstaller in the add/remove programs, you can try find the uninstaller manually... you can use a desktop search tool or you can navigate manually to the folders where you think the uninstaller should be listed...
anyway, when you install css, you have basically 2 programs: the ask toolbar and the BO prevention app, both have separate uninstallers....