Park brake shoes

I bought this kit form the auto zone and i don't know what to do with these springs that are in a V shape http://www.autozone.com/autozone/catalog/parts/partsShelf.jsp?displayName=Parking+Brake+Shoe&currentPage=1&categoryDisplayName=Brakes+%26+Traction+Control&navValue=14401103&itemId=prod61343&parentId=cat30058

Does anyone know where i could look at a diagram of the assembly or tell me where they go,mine did not have them and my backing plates were all rusted out so i have to replace those too.
Thanks