Well, our "problem" is pretty much only with the amount of
time she spends IM'ing, not that she is surfing all over
the web. I THINK she is much like many teenagers, in that
she will usually push the envelope, and she what she can
get away with (to a small degree). She's not all that
computer saavy...each time she has found a way around "the
system" it has been through pure luck, not because she has
any speacial or above average technical or computer
ability. Like the example I mentioned - one day, a program
she was working with locked up, so she rebooted the pc -
amazingly enough, NetNanny did not completely load, and
she was able to IM all she wanted.

She needs to be able to access the pc once or twice a
week  when she is at home alone for an hour or two in
order to do her homework.  So, I need something that will
allow me to limit her access, not just cut it off
completely.

At this point in time, I realize she will eventually
bypass whatever I set up - but, I would like to try and
stay either a step ahead of her, or no more than a step
behind.