number of ways to do this. one iof the simplest is probably
to : create a new movieclip with 2 keyframes in, in the first key frame put nothing except the actionscript stop();
in the second keyframe put your image.
put this movieclip on the stage and give it an instance name.
apply an actionscript along the lines of:
onRelease.myMovieclip.gotoAndStop(2);
to the button. (where myMovieclip is the instance name of your the clip with the image in )
good luck!
