Need help with a game(how to pick coins up)

1

i need help with getting the char to pick up coins. here is my flash AS code for the coins.

onClipEvent(enterFrame){
if(_root.move_mc.hitTest(this)){
_root.money++;
this._x=-50;
this._y=-50;
}
}

and for the money layer it is

money=0;

and this is the AS for the char

onClipEvent(load){
speed=7;
}
onClipEvent(enterFrame){
if(Key.isDown(Key.RIGHT)){
_x+speed;
}
if(Key.isDown(Key.LEFT)){
_x-speed;
}
if(Key.isDown(Key.DOWN)){
_y+speed;
}
if(Key.isDown(Key.UP)){
_y-speed;
}

i am using AS 2.0 and would greatly appreciate anyone that helps me. please correct also any AS that is wrong