I agree with Bigunn. To elaborate, he means "Cr*p Cleaner" or "CCleaner." Google either name and download the software. If you used Firefox (Which you !!!SHOULD!!!), then you can select "Tools" from the menu and then "Clear private data", or simply Hold the keys [Ctrl] + [Shift] + [Delete] and a menu will appear. Select "Cookies" as well as any other settings and delete them.
Don't use Internet Explorer mmkay?
Ryeguy, January 2009