Back in the day you could walk by holding down Direct Pass but with the introduction of Freestyle Control in NBA Live 2003, the game has been geared towards a dual analog controller and as Jao said, takes advantage of pressure sensitive sticks.
Oh my, so are you saying that i need somekind of a controller to walk? well, don't have time for that. LOL Thanks by the way for letting me know instead of me having a hard time figuring it out.