If you're talking about NBA Live 08, there's no official fix that addresses those issues. You will probably want to download Maek's Fatigue Fix (also implemented in the NLSC roster update) and there are a couple of sim engine fixes available as well; I believe Kris has made one. In addition to that, Pdub has posted a couple of unofficial fixes that allow you to reorder the roster in Dynasty Mode and view salaries in the Trade Players screen and fjccommish posted a fix that enables the Player Lock Function.
Check the
Downloads section on the NLSC as well as the Releases & Previews section here in the Forum for all those updates and more.