My 91 Passat Brakes need HELP!!!!

[Passatdude]

I Bught this car for 400 bucks and couldn't ask for a better running car, but it sat for about 7 months before i bought it and the rear calipers are frozen.... i need direction on the best pratice on how the calipers operate and how to change them out ...

[sixohfour]

im sure you may have fixed it by now, but my passat had one rear caliper that would get stuck and all i do now is when i release the parking brake i remove the ashtray right behind it and theres 2 cables straight down and i just push them as far back as they will go and thats my temporary fix.