I recently reinstalled Tiger on my PowerBook and when i was copying files from my back-up onto my new system some of my Photoshop files transformed into folders with 4 files inside(black_i.png, black_rollie.png, white_i.png, white_rollie.png). Is there anyway to restore these files to Photoshop files? They appear as folders on my system, my backup and on another computer that I tried to open them on. I did the back-up using the SilverKeeper software that came with my Lacie Firewire drive.