Lots of changes over the past few years. First, a rookie is a rookie for the entire event; no longer one run and done. Second, rookie orientation is now a two part procedure that occurs over two days. Third, there is no minimum speed for rookie run(s). Speeds only get important for licensing. If you're running under the lowest license level, well then you don't get that license.
Be at registration/car tech @ 4 pm sharp on Saturday (3 pm in November) and have a support vehicle with CB near by.