MX 2004 problem with symbols


i have the following problem:

i have a movie clip called “map”. i would like to have another movie clip (simple walking guy) to walk there following the map’s coordinates.
so, i attach the “walk_guy” movie to “map”:
map.attachMovie(“walk_guy”, “walking”, 1000);
and give the coordinates where to walk.
but nothing happens on the scene. if i attach a very simple symbol (just a ring) to the “map”, i can see it moving there. but if i have a bit more complex one (like some shape/motion tweens) nothing happens.

can somebody help me a bit.