...Toto...I don't think we're in Kansas anymore.... (????I'm not too good at these things)
Mac....right click on the image
.....click on properties
....highlight the url and capture it to your clipboard by hitting 'control' and and the 'c' (c=copy) key simultaneously..
NOW.......
.....go to the thread where you want to insert the photo and place your cursor where you'd like the photo to be and click on that little yellow icon with the image of the mountain and postage stamp thingy
......placed the url in the dialogue box**** by hitting the 'control' key and the 'v' key (v=velcro) simultaneously....and there you go.
(****be sure to remove the prompt in the dialogue box before pasting in your url)
(RLW will say that my instructions are clear as mud. Please help clarify if you can!)

PS - I couldn't find the thread with that exact image...HELP!