After this mess:
I've had to (up for debate) reformat and reinstall xp pro and upgraded (also up for debate
I'm now setting my family to run on a limited user account rather than administrator, but am having problems for my brother to run ICQ.
I have the simple file sharing unchecked, and have gone and set their limited account up for writing and reading to the ICQ folder found in c:\prog...\icq and all subfolders, but I still get an error in their account, saying that they need to ask the admin (me!) for write priv.'s.
But I thought that I set that already!