Ian,
This is definitely a case for your local support guys, and the one that can hardly be solved from far away.
What I have noticed in your description is that now in 11 you are missing the Brava reader step.
If you want a booklet of print files, then the 11 Publisher should be aware of your printer driver and have an option to make a single booklet - as it does with PDF. Not likely.
Therefore, I do recommend talking to the local Archicad people in order to find the best solution.
Djordje
ArchiCAD since 4.55 ... 1995
HP Omen