You need to dynamically load and display an image.
Use the Loader class to load the image.
createEmptyMovieClip("loader", 10);
loader.loadMovie("image.png");
loader._x = 100;
loader._y = 100;
loader._rotation = 20;
loader._alpha = 50;
var request:URLRequest = new URLRequest("image.png");
var loader:Loader = new Loader();
loader.load(request);
loader.x = 100;
loader.y = 100;
loader.rotation = 20;
loader.alpha = .5;
addChild(loader);