Comprehensive and detailed manuals cover both the GUI console (called the Zmanda Console Manager or ZMC) and command-line interfaces to Amanda Enterprise. The man pages are also installed along with the Amanda server.
Amanda Enterprise 4.0 Release Notes
Zmanda Management Console Users Manual
Zmanda Linux Client
Zmanda Mac OS X Client
Zmanda Windows Client
Zmanda Solaris Client
Zmanda Application Agents
Amanda Enterprise Man Pages