You need to have a hosting site such as webshots or something similar. Post your pictures on the hosting site. Next, go to the site and display your photos. Highlight the web address at the top of the page and click on copy. Next, go back to the Stovebolt. Write your message and then leave an empty line, click on paste to paste the hosting site web address into your message. Enter another empty line and finish your message. When you click the submit button, the web address will appear in blue.
I hope that this is helpful.