too bad they dont make Phone Creeper for Android... thatd do everything you want and could dream up...
as far as picture mails...
www.pictures.sprintpcs.com youll need her phone for a second though.. odds are shes never registred.. so when you goto to sign up, it sends a pword to the handset first time.. so, youd need that message.... then you can see everything shes ever sent/recieved... and future things...
no I havent been through this or anything, though I am a parent(my kids dont have phones yet).. I just know what the pic mail websites shows you since I back up alot of pics there back in the day..