iOS 6 Update Deleted ALL pics

My mom is so pissed off at me because I updated her iPhone 4S to iOS 6, and now all of her pictures are GONE! I made sure to backup/sync the phone with the computer and now they are no more.

Is there any possible way to get the pictures back or are they gone forever? I feel like crap, but why on earth would an update to this?!?!?

Someone please help me. :(

EDIT: nevermind, problem resolved.