also you need spyware ... (a detector that is!)
you need to add spybot search and destroy
http://www.safer-networking.org/en/index.html
and ad-aware
http://www.lavasoftusa.com/products/ad_aware_f ree.php
personally I'd go for avira (94%)
http://www.free-av.com/
for a free virus scanner .. (avg (84%) is getting bad press at the moment and avast (91%) is mediocre).
the problem with all the freebies is that they rely on you updating the definitions and scanning the machine.
which means at best ... you've had a problem on your machine for an hour or so ...before it's sorted out
the bought progs use real time scanning (which admittedly does slow things slightly) but sorts the problem (as the yanks say) before it becomes a problem.
at the moment the best all rounder witha 99% detection rate
is kaspersky
http://www.kaspersky.com/kaspersky_internet_se curity
which will look after just about everything ... without needing attention.
and (depending how old your daughter is) has parental control