lol...yeah there are various types of things that he could use depending on the instant messenger. AIM might have the same option if she is using the newer version. if she is a smart girl, and finds out youv'e been doing this she may find out about meebo.com and then your out of luck lol. honestly, the best guard against predators is intelligence. Talk to her, let her know not to talk to people she doesn't know about sex, and that she shouldn't tell them her location. I'm such a hypocrite......notice how I don't know anyone here and how my profile says im from Colorado...lol
Snap Files is a good resource of freeware, so try looking here:
Also you may want to look into remote administration tools.
Try Googling for a computer monitoring/admin program, find one, learn how to use it, and that should work. I only used one to spy on my sisters computer for awhile (was worried about the same thing), and the program I used was way to technical.
This is what i do to internet predators
Ill pretend that im some innocent little 12 year old girl (of course im a 15 year old guy) and then like a minute into the conversation ill be like
"You sick Son of a b**** just got f****** pwnd."
By then I've got the guys IP address and anonymously send the guys location to Perverted Justice. Normally they catch those sick people.