[dark256]

Примерно так:

Mouse.hide()
attachMovie("my_clip")
 
onMouseMove = function(){
       my_clip._x = _xmouse;
}

или

my_clip.startDrag();

Mouse.hide();
attachMovie("MARK","MK",1000);
_root.onMouseMove = function () 
{
	CURX=_xmouse;
	CURY=_ymouse;
}