Instant Messaging Help

Hello!

I don't know if anyone here can help me or not, but I am having trouble with the IM/Chat monitoring with the Online Family. My teenager has a yahoo IM account, and  the chat is monitored there. I have been noticing that her chat from MySpace and FaceBook are not monitored, an she has recieved disturbing messages.... How do I adjust the settings to include monitoring of FaceBook Chat and MySpace Chat??  I worry more about what is out there in cyberspace than what I have in my home, but I want to be safe all around. 

My Operating Syatem is WIndows XP 

Browser is Firefox....