The FVC is a public usergroup, meaning anyone can apply to join from their usercp by going to My Settings>Group Memberships then selecting the "Join Group" radio button next to the FVC.
The join request may be processed by the FVC moderator who may accept or deny requests. Once the FVC mod accepts, however, your name/title doesn't automatically change to reflect your FVC status. If you were previously a Basic Member with no titles, you can go to
"My Settings", select
Group Memberships and you will see something that looks like this:
Select "Identify me as a member of this group" next to FVC then click "Update Display Group'. Once doing so, your name will automatically display in FVC markup and you should also acquire the FVC title. If you already belonged to the Forum Moderators usergroup or any other usergroup with a special name/color/title, your FVC may have to be added manually by an admin and the FVC moderator will make the request on your behalf.