!. Yes - here a man took his computer in to be cleaned and so on basically the whole works. He deleted everything before taking it in and ran one of these "clean everything even hard drive" type programs. While his computer was going through the "shops" maintence he took it to, the worker happened onto a file with child porn. The worker called the cops and the guy here in this town is sitting at this moment in jail for conversing with a minor with the intent to have sex, rape and sodomy of minors, and that just the beginning since the case is still in the locate all victims stage. No matter what site you go to there is a way to track it, all she has to do is take her computer into a computer repair shop and tell them she has a problem with it and what she may suspect. They will get into the tower and fine the problem and also be able to tell her if someone dumped anything and what was dumped and when since all computer activity logs dates and times.

2. some are and some arento but regardless of which one used the hard drive will still have an "inprint" of on line activity. A police officer who lives a few apppartments down from me explains it this way - "imprints" on a computer is like make a carbon copy of a letter. you can get rid of the original but the carbon copy stays.

3. Yes. its called spam block and pop up block. AOL has them which is one of the reasons I stay with aol.

I have heard of parental controls like a tracing program but I don't know where you can get it or what its call (manufacture and so on) I just know that my local library has them attached to the computers in the childrens resources computers.