Here is an extensive list of downloads with updated franchise rosters for each NFL Season since ESPN NFL2k5 was released in August 2004, plus assorted seasons from the past. You will need a copy of Action Replay in order to transfer these files from your computer to your XBox hard drive.
These season rosters provided by the excellent website www.nfl2k5rosters.com
PAST NFL FRANCHISE SEASONS
PRE-2004 NFL SEASONS