On the Comodo website for the Positive SSL certificate that GH has installed on a client site, it says:

Positive SSL provides domain validation but do not authenticate the business behind the online business. However, in order to provide critical identity assurance for your site, every Positive SSL comes with FREE registration in IdAuthority. IdAuthority is world's first and unique real-time identity assurance service developed by Comodo that allows website identities to be verified against registry and public data. This validation process delivers identity assurance so customers will trust you and be confident buying on your site.
When I try to verify the IdAuthority for the domain here: IdAuthority SSL Certificate Secure Server Digital Certificate

It says:
IdAuthority Credentials not available for this site
How do I go about registering the client site for this certificate?