can you confirm you have the latest URL Filter/Smartfilter versions installed? If you look into the dashboard you should see what the current version is, it should be identical/similar to the version reported on trustedsource.org.
I think the best approach is to call support and provide them with all details they require, especially a dump of your configuration and a set of example URLs.
I have checked the URL and it looks pretty good. It loads images from "trendgear.com" which is marked as "Spam URLs" and blocked, but this should not block the complete web site.