u may think about putting a key logger (not recomended AT ALL) on your computer so when she tries to dl something it will promt her to enter passwrd...i might have one lying around...a free way of trying it is download something called wireshark. this program can pick up all network trafic. it also picks up user names and passwords. the only prom with that is u have to keep it running. now with the wireshark u have to be carefull make sure ur only sniffing ur network or else whatever company your get ur internets from will fall harder on u then a sac of bricks. now the passwords that wireshark pic up will only be online ones i.e. hotmail gmail facebook myspace and so forth from these passwords it shouldnt be too hard to guess the admin password