Hi this is my problem hw to open a lock file

Hello,
hi this is phani, I have nokia 7210 super nova mobile, in this I uploaded one software for hiding the files, I hidded some files bt the problem s I cnt open some files on the system coming like invalid image,bt in mobile I can see the pictures... the folder name is appers like
name of the picture:- photo -030-jpg.lck. This my problem to open this pics wat I can I do , I need tat pics to have scanning, plz help me outtt...