Please make sure you have a decent quality photo available in the first place – it must be at least 400 x 600 pixels and not more than about 2mb in size. If your photo is too small it will either not work at all or will look horrible. You can crop your photo and have it automatically sized using the on-page editor.
Click on Browse and navigate to your photo location on your computer. Once you have selected the photo, click on Upload and you will see your photo in the box. Click and drag your mouse over the photo to select what area to crop to. The crop aspect ratio is fixed, but you can move it around on the photo to frame as you wish. Then click on ‘Save as thumbnail’ and you’re done. You have to select a crop area in the photo, you cannot just upload without doing this. (For those who want to prepare their own photos – the final crop size is about 168 x 218 pixels).