To register with this Peer-To-Peer site register with the MCFNS journal site and email the editor to extend your registration to this site.  Note that if you are a known person in your field the chances are that the editors will extend your registration to this site without your asking.  The only reason for the involvement of the editor in this re-registration is a basic scrutiny of the potential reviewers that will be getting access to posted anonymously unpublished contents describing original research and new ideas.