We don't allow linking of pictures or to other sites with the pictures without them being attached to your post.
You MUST have pics included with your FS ad posted up within 24 hours of the thread creation.
Pics are required and must be attached to the post not linked from another site.
Edit your first post and then click Go Advanced> Manage (paperclip)> Browse to the photos location > Upload. If the photos don't upload or give you an error then down size them by 50% and try again.