You can start placing your Backorders via this page. There are 2 products to place your orders with:

 

Standard Backorder: Our Regular, $25 Backorder to catch domains dropping only Today/Tomorrow.

Premium Backorder: Our Premium, $50 Backorder to catch domains dropping any time in next 35 days, with enhanced catching power.

 

All orders are on first come, first serve basis. This means that any domain ordered in any category, cannot be ordered again by any other customer.
So hurry up, and place your orders before someone else does.