The customer authorization (provided in the link you clicked) is out of date, and does not entitle you to use the Blended Threat service.
http://news.thefa.com/HS?b=lMADSIL3NlLwU39p_3JInmNxvZ5KrVapRRb6_qWP6ws3Gp9JMyzFzocFbDoJt7JT&c=H_wXHsRdOFtBfx98cmo3hw