Here is how to upload - then display the image you want
1, click on image uploads below - then scroll to find the image you want - try and keep the file size of the image below 2mb.
2. Once the file has uploaded - it gets stored in a folder, within the website.
3. In order to put the image on a web page, you need to describe where the image is ( within the site ) so that it can be displayed on a web page. This is a diagram below...:

4. When the image has been uploaded, you'll see under the Description of the image a url in my example it is http://www.bpsfa.com/editor_upload_images/aquaterra.jpg - copy this url ( Ctrl + C keyboard keys ) - then hit the postcard icon above which is underneath the source button... then paste in your pic.... and it should arrive... thus:
bingo it works !! Easy when you know how Tim!!