or try this ...
When you start a thread, you'll find "File Manager" at the bottom of the text window. After typing your text in the text window, click File Manager and follow the steps (Browse, Add photo, Done adding photos). Then "Submit" to put your post and photo on the forum.
Same goes for replying to a post, but you have to use Reply, not Quick Reply, to add a photo.
When using File Manager, be sure your photo is around 40K or less, and sized around 200x150 pixels.
Hope this helps.
Tom