I think the picture didn't show because it is an actual webpage, and not just a picture.
To post a link, when you post there is a button up top, underneith the title box, that looks like a globe with a link of chain in front. You can click that and then paste the link into the box that shows up and it will put the code around the link and post it into the message box. Alturnatively, you can use the [ URL ] code before and the [ /URL ] code after your link. Just take out the spaces.
Sorry if that's confusing, I don't think I'm good at explaining these things.
Also I wanted to add that you can upload pictures to photobucket and then post them into your message from there.
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