My pictures on my blackberry torch got erased!!!! HELPPP!!!!?

I put my sim card in another phone and used it for a couple of days then i returned to my blackberry and my SD card wit all my pics tht stayed in my blackberry all got erased!! like the name of the photo is still there but the photo its self got erasedd/ disapeared!! plz helpp! i had very important pics! is there any way to get them back?? if so plz comment! anything ill try anything! i have alreddy tried taking out the batery/SD card and rebooting it, tht doesnt seem to work! plz helpp!