If you are looking for the original printed (manual) or "paper" inserts for NBA Live 2004 , you can find them as standalone items or as part of a complete-in-box set through various second-hand retailers. Where to Buy Manuals and Inserts
For a look at the game's actual mechanics and visuals from the era, you can watch this tutorial or playthrough: NBA LIVE 2004 Tutorials. Spino's Kingdom YouTube• Oct 8, 2018 NBA Live '04 Guide - IGN NBA Live 2004
If you just need the information contained in the "paper" (like controls or rosters), there are comprehensive digital guides: If you are looking for the original printed
: You can find standalone Nintendo GameCube manuals, PlayStation 2 manuals, and Xbox manuals. These typically include the basic controls and gameplay features. PlayStation 2 manuals