Sorry Artie, thought you'd figured it out.
Another way;
1. Click on Add Reply - Bottom Left, under the last post. Or Quote if you wish to quote like I did here.
2. Scroll down and click on Manage Attachments.
3. 3 boxes will show up. To the right of each is a Browse button, click on that, find the picture in your system you wish to display, double click on it. It will automatically add that one to the box. If you wish to do another, up to the three max, repeat with the browse button by the next empty box.
4. When you are done adding those links, click upload. The system will load the images you have selected. When it is done loading, close that box, click on submit. Should be done.
You always have to add at least a word as text or it will telll you message is too short.