ActionScript 3.0 :: Image In Array To Background Of MovieClip

When the xml file of images is loaded, I place each image into an element of an Array so I can handle them individually. Problem I am having now is this. When image at element 1 is pressed, it should become one of my movie clips background. I am using some code I was using in as3, when the image wasnt in an Array and it worked fine. Now I am in AS2, and the image is in an Array, it doesnt seem to work. Additionally, I get no errors whatsoever.

The code for this is
picHolder[1].onPress = function() {
picHolder[1].width = card.width;
picHolder[1].height = card.height;
picHolder[1].x = 0;
picHolder[1].y = 0;
card.addChild(picHolder[1]);
};

Whereby picHolder[1] is an image, and card is my movie clip. If I do picHolder[1].startDrag(true), I can pick up and drag the image. So, I know I am dealing with the correct image here. Should I be doing the above differently when working with an Array?