CCleaner showing Office 2003 when it's not installed

My mom's computer had a trial version of Microsoft Office 2003 which I uninstalled when I installed Office 2007. CCleaner shows 2003 and 2007 in "Applications". Would anyone happen to know what file, folder, or registry key might be responsible for 2003 still showing? I've looked everywhere and couldn't find anything that I thought could be the culprit, but it could be something that's not obvious. Thanks. :)

CCleaner 3.08.1475, Windows XP

That would be this registry key

HKCU\Software\Microsoft\Office\11.0\Common

:)

Absolutely, that worked. Thanks a million! :)

No problem! :)