I used to do it the way cyndiella mentioned, but now with the "new and improved" DIS it's even easier. Click on "upload a file" , then choose existing, if your photos are on your camera roll on your device, and just click on the one you want. It will upload it as a thumbnail, and then just click full size. If your photos are on a photo site, go to your photo site, choose a picture, save it to your camera roll, and then follow the same steps. Hope this helps!