Adding photos to your posts is invaluable; here's how.
1. Click on the Image icon.
2. Browse for the image on your computer
3. Click on Upload (top left of the new window).
4. Click on Browse, find your image, and select Upload.
5. Once the image is uploaded, highlight it and select, then click on Insert file.
6. Set the image size, these images are 320 px wide but 640 is pretty good. Then click on OK.
Presto, that's it . . . now your pictures can be worth a thousand words!