I think the manuals for the N80 (and a number of the Nseries phones) really need some work. They just don't contain enough information to allow some users to get full access to their handsets. In particular, I'm thinking about things like using the phone to connect wirelessly to the internet.
For the record, my manual for my N80 is the Voda version included with the Voda branded handset(which isn't substantially different from the regular one.)