You seem to have the photo uploading part working. In your other post, you posted the link: http://a2.ec-images.myspacecdn.com/images02/138/6edb5f86231a4d29bc02457f0c91803e/l.jpg

Now all you need to do is put that exact same url inside an image tag to display it directly in the forum, like this:

Code:
[img]http://a2.ec-images.myspacecdn.com/images02/138/6edb5f86231a4d29bc02457f0c91803e/l.jpg[/img]

When you put the image tag together with your link you should see this when you hit preview or post:

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Victory awaits him who has everything in order — luck, people call it. Defeat is certain for him who has neglected to take the necessary precautions in time; this is called bad luck. Roald Amundsen