One of the answers in the FAQ says, "At the moment CCleaner supports cleaning the current user's account only. This may change in a future release."
My XP Home system has four user accounts (all Administrators). Whichever logged on account I run CCleaner from, the list of entries from an 'Issues Scan' list (and appear to clean) registry items for all users. Certainly the items found point to files/entries under different user profiles.
Is the FAQ out of date or am I misinterpreting things?