This is the best roster i've found so far that contains rookies:
http://forums.nba-live.com/viewtopic.php?f=143&t=82823
Downside: All "hotzones" of every rookie player are set to "cold".
Upside: The ratings of the rookies are damn near perfect. It's also compatible with the rookie cyberface package, so all the rookies look like their counterparts.