Sir John, I am down in Charles Town, WV. Perhaps we will meet at the PA Renn Faire if I make it sometime, or if you come down to the MD Renn Fest (my "home" faire).
To have the coat of arms posted, you need to be a member of "The Order of the Marshal". A number of us here on the forums are members of the order, but the two are not synonymous with each other; you can be a forum member and not an order member, or an order member and not a forum member, or of course, you can be both.
You would need two order members to sponsor you into the order to have your arms posted and name added to the roster. You would be added as a yeoman/squire of the order. Once the other order members get to know you more, you can receive the title of knight of the order if you are sponsored by three existing knights of the order.