All members can post photos. Click the image icon in the editor, then you can drag and drop photos into the uploader or navigate to your computer and upload images. After that, you need to select the image(s) from your image library (a tab in the same window) and select the image you want to insert in your post.
As far as post order, we will be flipping the order in which posts appear to oldest at top/newest at bottom. Hang in there as we make continued refinements.