Yes I get it now. This is not the finished map thumbs but the image in this particular thread. Sorry for leading everyone astray there.

I don't know why it isn't showing up. If I click on the link I get the full image but the link is shown as text not picture for me too. It must be that the bulletin forum software has it marked that way or cant locate the thumbnail and has opted to show some text. The HTML behind the page is asking to show what you see so its not like there is an image there that the browser cant get to and is doing the substitution, its the forum software generating it like this. My only suggestion is to edit the post, delete the attachment and then re-upload it.