The racks for the old backrests (which you probably have) are no longer available through Victory because of the recall. The new racks which fit the backrests with 3 holes on each side are backordered because they are trying to work replacements before they sell to the public.
Note that the racks are not cross compatible with the old backrests and the new backrests. In other words a rack with 3 holes will not fit a backrest with 2 holes and a rack with 2 holes will not fit a backrest with 3 holes.
Also since it sounds like you have the old backrest and have never had a rack installed you are not affected by the recall so you wont be able to get a new backrest. This leaves you with a few options - buy an old style rack, buy a new backrest and a new rack, or convince Victory that you had a rack installed in the past. The best bet would be to buy an old style rack but if you aren't comfortable with the possibility of your backrest cracking (highly unlikely) the are things you could do to prove that you had a rack installed in the past which would qualify you for the recall.
Retired USAF, IYAAYAS!
2008 V-Star 1100 Custom Bobber project
2011 Crimson XR with Forged Highway Bars / Hard Bags / Passenger Backrest, Ness parts including Smooth Layback Plate Frame/Mount / Rad 3 Mirror / deep cut grips / drivers floorboards /shifter peg / brake peg / passenger pegs. Witchdoctor black rack, Lloydz filter / timing wheel / VFC III, 7Jurock windshield, Drag Specialties seat.