For what it is worth.
I have to log in and then go to the message board. Under my avatar at the top of the window there is a profile butten I click on that.
There is a "modify profile" menu off to the side there, I click on "Forum profile information" on that window. On the register that comes next, the custom title and signature boxes are near the bottom I just type em in. You should probably add one of your websights in the same place.
I don't think there is a waiting period.
If you don't get anywhere you can PM "Johnson" or "error" and they will square you away or give some sort of sorry excuse.
(You "PM" by finding their name and clicking on that then the "send this person a private message" button toward the bottom, we mainly use it to gang up on trolls, but I guess it could be used for real reasons as well)
I am glad you joined us by the way.