The Convergence 2013 CPE form is available on Virtual Convergence under My Convergence | Attendee Info.
http://www.microsoft.com/dynamics/convergence/neworleans13/Attendee-Information.aspx?p=topnav
Convergence 2013 CPE
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.