Sir John, as we are more or less a fledgling order, there are no hard and fast rules for membership- done on a case by case basis, it boils down to familiarity. Your presence on this forum is noted, as is your interest- but none of us have ever met you (although I understand that may change, and soon) so we are getting to know you on here.
Having said that, being a member of the forum here does not equate to membership in the Order...and it is the Roll of Arms you are inquiring about. That takes a bit more...not only must one be known, but it must be put forth by an existing member that such a one should be considered for membership and another member must concur in order to move forward. Usually sponsorship is discussed when a knight puts forth your name for consideration...until that occurs, be a presence here in the forums, be a presence at Faire as suits you best and eventually, your name may enter the lyst for consideration.
To give you a bit of a timeframe, I became a member of the forums nearly three years ago but was only just knighted into the Order this past May so for me, it took 2 1/2 years- and I am one of the founding members of said Order.
This will not be a quickly-acquired ranking only to be forgotten amongst all of your previous accolades...but you are on the right track. Let us get to know the man beneath the armor.
-William