Daniel, your link doesn't seem to work this way. You have to re-attach the file... or just redirect wta_amanda to the other thread.
I you want to re-attach it: open Martina's pic in the other thread, rightclick on it, choose "save as". The pic will be saved on your harddisk. Then edit your post here, chose "Manage Attachments" (you will get a little popup window) and attach the file you have downloaded. When the name of the file appears in the popup, you can chose "All done" - the file will now be attached to your post.
(But it's simpler of course to point wta_amanda to Glenn's post in your other thread: this post