I had a devil of a time posting an image and I'm familiar with phpBB..
The [img]xxx[/img] didn't work for me for several times. I finally figured out that I could get the right thing by QUOTING a post with an image in it to see what was up. Turns out it looks like I was doing it right.
Folks have mentioned that HTML can be used. But, HTML is disabled for this board. Note the little box of Options in the lower right of a posting as you create it. Doesn't matter if you change ENABLE HTML in your profile. It's OFF for this board.
But the [IMG} thing works. But it's quirky. You gotta be persistant..
Surfing and Outdoor Photography.
Coos Bay, OR
Let's Take Your picture!