[Flash8]help using symbol and instance names

I’m building a platforming game using AS2. I just got collision detection working between my character and multiple instances of an object. the different collisions (top, left, right, and bottom of platform blocks) are determined by a single symbol with 4 instances named for the different sides. this is good if i only want to have one block. is there a way to reference the symbol name in the actionscript or to have multliple instances of the same name to actually work?

anybody?