go down to manage attachments from here....
Click on "Browse" ...
Click on the pic you want...
Click on "Upload" .... (you may have to widen the insert to see it.)
Scroll down till you can close that screen....
after you close that screen, scroll up to your "reply" screen, and look for the little paper clip, click where you want the pic in your reply box, then click on the paper clip, then click on your attachment.....click on "Submit"....... that should do it !