Dynamic drawing over movieclip AS-2.0

i have loaded an image into a movieclip using loadMovie.
and i need to be able to draw -when i export the flash doc as swf- over that movie (this movie is the same one in which i loaded the the image) using the drawing functions from the actionscript 2.0 (… mymc_mc.lineTo(x,y) etc…).
unfortunately the drawing is being placed under that movie, how can i bring it to the front of the movieclip.
thanks for helping.