Re: Move Pics from 1 category to another
They should be in your /gallery/users folder. You also need to make sure you've set your 'FTP User Folder Path' option and that you have your 'Can upload from server' permission setting set to 'Yes'.
The mass move option has nothing to do with the mass upload feature. It allows you to mass move images from one category to the other, not one folder to the other.