Download to iphoto. Select your best images. The art computers have photoshop available to resize and adjust images. Make sure that your image is no larger than 3MB. An easy way to resize your image is at http://www.picresize.com/.
Images need to be not larger than: Landscape: 530 x 780 Portrait: 780 x 530 pixels.
Once you have images, you can drop them into the AP digital submission site. You will need to have the actual length, width and height measurement.