Need help, for a vertical mouse scrolling image

I’m working in Flash CS3 action script 2.0, I have this picture, it is 519x668 px but I have the canvas set at 519x316px. I have seen a thing where people can move their mouse left or right and the picture will scroll in that direction. I’ve done tutorials on things like scrollable gallery’s but I can’t figure this out. I need it to go vertically, up and down. So if I move the mouse down, the picture will scroll down and if I move the mouse up, the picture will scroll up. I have the picture bigger than the canvas at it’s normal size so it’s not all pixleated. Is there a code I can use for this? Just a simple one, where according to were the mouse is, it will scroll up or down? Thanks