Page not found (404)

Request Method: GET
Request URL: http://stage.nasalt.uncommonsense.com/filer_private/2011/12/28/mgcl2_environmental_impact.pdf/

CMS: Page not found for "filer_private/2011/12/28/mgcl2_environmental_impact.pdf"

You're seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.