Just do like he said...
Post 20 is the code
Post 21 is a slight fix of the code (had somehting named wrong)
Post 24 is responsible for making the above screenshot have the rankid visible for an overview
Obviously you didn't do 24 right...but if you did 20/21, then you should be able to hit the edit button to the right of the rank and see a rank order section. See screenshot below.