at this site you will need to host photosto photobucket or a similar photo hosting site.
as the photo is already online at photography board the proceedure is as follows
Have both A2k and photoboard open in different tabs
open the photo at photo board.
right click on the photo
select copy image location
open A2K
open the reply box. (where you type your post)
right click within the reply box aand select paste.
hilight the pasted url
open the BBCode editor (tiny green writing at the top left of the reply box)
select the Img button. this will surround the hilighted URL with the tags [img]
your url[/img]
slect preview to see your photo as it will appear on A2K
select post to post your photo.