AI, hitTest problems [May be problem for experienced flashers]

hey guys can u hav a look at this fla…

i am having a few problen with the AI of the enemy when it coms to the Y position, you would be able to tell when you jump on to the ledge that is there, the y postition starts to go hay wire, because i wasnt, and still arent sure if you can make the y position move toward that of another…

also if you can, when they walk into the side of the ledge rthey are meant to hit the “edger” object precisely, but i cant get it working:puzzle: i have looked at the tuts and stuff around but wont work…