Looks like another FP as Norton Internet Security 2007 is flagging the CCleaner installer/uninstaller as adware.cpush.
It is also flagging Second Life as having the same.
http://www.dslreports.com/forum/r18678299-...-as-AdwareCPush
I have NIS 2007 which is fully upto date, and it is not flagging CCleaner slim version. I wonder if it is picking up Yahoo tool bar in the full version.