Long time ago, as I try to remember, the extra cups rest inside the ones you have mounted to the head tube already. They seem to free float inside then remain true when proper tension is adjusted with the top cap, locking and top nut.
I truly hope someone else can chime in and help out. I do not want to mess cause grief to him or the Dawes. I had to put mine together too. It was in pieces when I received it so long ago. But it works fine, very smooth.
Best of luck...