ActionScript 2.0 :: Flash CS3 - Symbol Zone Hittest?

I've been trying to work around this for a long time and no matter where i ask no one can give me any kind of solution to this... even when the problem itself doesn't look that hard but its hard to explain.I was trying to make a very simple kind of maze game with a flat perspective (like the 90s RPG) the maze walls must be four sided solid, the left and right walls are not a big issue but the top and bottom walls have the problem, for example the top walls must allow the player's head and body to go over it but stop at his feet and the bottom is something alike.My idea to solve this was put another symbol inside the player and put it on the lower part and another symbol inside the wall and make the hittest but it didn't work
I put the walking code and the hittest on the player symbol and it worked, but immediately when i put the hittest code on the symbol at his feet inside the player symbol the code stop working.The walls must contain the solid and graphic part inside the same symbol because some of them will move

Right now I deconstruct the whole thing, any idea will work, i'm just starting pretty much from zero