Bad Binders

I removed the rear wheel the other night and while I wasn't paying attention, the pieces all fell out of the rear brake set-up, calipers and all. I re-assembled everything according to how I thought it should go and now when I squeeze the brake I get nothing. I could yank the brake line all the way out to get it to work but... I think maybe I'm missing a spring or something. The pad on the rim side of the caliper has nothing between it and the bracket holding it. Does anyone have a exploded diagram of the rear brake or have any information for brakes otherwise?