Okay the parts that you are looking at are the 280zx front brakes,a dn the parts he showed are 280zx rear brakes.
I couldn't explain in words, so I had to draw a picture but I'm on lunch so I had to hurry, this is there they go. sorry for the Picasso
the clips go on top of the pads and kinda wedge into the caliper
This is a quick picture i took with my camera phone it sucks, but might be of some help.
http://img.photobucket.com/albums/v505/snsforums/morebrake.jpg