I needs help with facebook?

ok i have like 3 facebooks...brandi, chellee, and brandie. Well i want to no how to do mobial uploads. i have a samsung strieght talk phone its the kind with the full keyboard. The one with the idy bitty keys. I looked it up and it said all u have to do is . Put in ur email.yahoo.com/facebook.com well i wanted it to go to my brandie, it went to my chellee and ive lost my email to it but i can tag my self. How do i get it to my brandie? I also heard u type in photos@facebook.com but it still goes to chelllee