Are you using a picture hosting service to store your pictures?
If so, which one?
I use ImageShack, but there are several other hosting services. Most of them give you a direct link you can paste into the image tab. Or you can use common forum code to reference it {img} http://yourimagehost.com/abc123.jpg {/img}. Substitute [ ] for { } and it'll show the image at the web address in between the img and /img tags.
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