I've written a page about what to do if you lose a ferret - check out
http://www.all-about-ferrets.com/lost-ferret.html
I know how awful it is to lose a ferret - we used to lose our old gang regularly when our kids used to live at home with us but we got every one of them back safely.
I really hope you manage to find your ferret again and that she ends up safe and sound back in your place.
