Call log edit

hey frens,

how are you.. after years i am here.. actually needed help for the geeks around here.. i have been away from symbian since last couple of years..

coming straight to the point..

my girl friend's brother lately started spying on her.. so i cant call her cause he checks the logs sometimes.. And if the logs are clear then also its a problem.. So is there anyway where i can clean/edit the logs ??

not the call logs, but a log is generated in the phone for every thing, like sms and all.. so is there a way out ??