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The Frameworks is present, but the link I posted (/Frameworks/captcha/scripts/img.php) does only work when the referer is also pointing to the site. So it must be saved (with http and host) as link [url= or image [img in a news article or forum post first to test.
When I look at the html source of your Contact Us Formulaire, there is a link to a generated captcha image (http://crabstreetjournal.com/xoops/uploads/securityimage/cache/85bf26.jpg), but it is not accessible. Can you verify that this image is present or that these folders exists and have write permissions?