When you upload the photo, click on it, and somewhere on the micro-menu that pops up there should be a "Link to" or "Embed" option. You want to look for the URL that is titled "Direct". Copy-paste this URL into the picture box text box (The button that looks like a tree on the "Thread-reply" option) and BAM! Remember that you can always preview the update to make sure that the URL works, and look around the sticky'd threads around here, they can tell you what to do