settings.db instructions: 1) Using Madden DB Editor, import the file into the "SMRC" table in SETTINGS.db. 2) Save. 3) This will update the Menu > Stats section in-game.
Q: Why don't the players have their portraits? A: Because I do not know their Player/Portrait ID to assign them.
NOTE: You should add this at a fresh install of Madden NFL 08.
You should note that this is best done on a fresh install, as it will eliminate all stats accomplished by the user. When I opened the file, I noticed several records from my franchise in there.