I see what you mean.
2 options spring to mind.
1 is the image hosting linked to the forum site. It is the 15th button from the left when you are in the "Post a message" page.
2 is
Imageshack. I don't like Imageshack as it seems to have more advertising, and is harder to work the site. But as long as you are registered, images are available forever.
Photobucket and imageshack are first when I searched google for image hosting, with plenty others listed.
If you find a better solution to any of those, then let us know.
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Ali