Apple finally published their updated manuals in PDF form for the apps in the Final Cut Studio suite (Final Cut Pro, Color, Motion, etc) and here are the links in one collection for you to download:
Final Cut Pro 7 Manual
Motion 4 Manual
Color 1.5 Manual
DVD Studio Pro 4 Manual
Compressor 3.5 Manual
Cinema Tools 4.5 Manual
Soundtrack Pro 3 Manual