Photoshop and repain kits / how do i paint myplane

Ok can anyone help me out? i downloaded a repaint kit from the design section of simviation and i tried opening the files in photoshop and they woudnt open, anyone advise me on how im suppsoed to open them and if i have ot put them in a different folder? thanx!
any help would be great thank you!

any help would be great thank you!

