At the bottom of page, above the reply box, click the blue button that says "post reply". Then scroll down to "additional options" box and click "manage attachments". Now you can browse your computer to attach images.
I'm Pete, and have been a long time "Ford Barn" member. (I love the new format Ryan set up). I build traditional hot rods, and love the flatmotors. I'm a "man of few words", but I lurk and read alot.