Use quick reply. Type in your message. Click on "Preview" button. Near the bottom of the screen (you may need to scroll down) click on the "Browse" button. Browse your PC and select the photo you want to post. Maximum size of the image is 150 KB, and you can attach up to 4 pics to a single message. You Can also link pictures from other web sites, but if the photo comes down on the other site it will no longer show up here.
Looking forward to seeing those photos...