Vaporvac, the best way of posting photos from the database requires just a couple of steps.
First, go to the photo and click on it to enlarge it. Do this to the photo down among the other photos, not the top photo serving as the main entry photo.
Copy the BB code above the photo. In this case, it's [db_photo]663113[/db_photo (but I've left off the end bracket to show the code rather than the photo.)
Paste the BB code (with the end bracket) in your post. The photo will appear in the preview and finished modes: