If you registered for the Gala (through the registration system), you will eventually see the outstanding balance reflected on your account (click "General" on the left menu bar once you've logged into the registration system). If the balance doesn't show up yet, it eventually will. You can choose to pay for the Gala ($60) and any other outstanding balance before NOAC (through the system) or, to the extent a balance remains, you can pay it when you check in onsite.
Upon registration, you will also receive your Gala ticket. Bus transportation will be provided from Cherry Lane Park at 4pm and guests will be transported to Breslin Arena directly after the Centennial Gala. Paid parking is available at Lansing Convention Center for guests opting to drive. Tickets will be required to board the bus and to enter the event. A reception will be held at 4:30pm and dinner will follow at 5pm.