http://imigrar.com/photo/data/502/thumbs/DSC00109.jpg
You dont have permission to access that file. HMM have you set the permissions to 777. What are the permissions on that file itself? it should be at least 644 to be accessable through the web.
If your on network solutions they have a problem on there servers where they set uploaded files to 600 which is not accessable to anyone so they will need to correct this. Just an FYI if that is your host.