OK, similar question here: I'd like to add wallpapers to my gallery. Being 1024x768, once the user clicks on the preview, the image is too big for the screen. Ideally, uploading a normal image (preview+photo) plus a button to the full size version would be fine. I've noticed, in the upload page, there is an additional URL field... Can I then add the url of the 1024x768 image there?