Swap for money
Start the game with 2 human players pick any team you want for yourself. Then 
pick Real Madrid. Go to find player club when your are with you team go to Real 
Madrid, pick Ronaldo and then compare with your worst player. Then swap the two 
players do that as many times as you like for every time youll get 10 million 
dollars if you did that a thousand times. Put Ronaldo back to Real and go to 
manager options for Real Madrid and quit carreer.

End the game when you want 
For this you'll need Fifa 2004. When you're in the screen that asks you if you want 
to just see the result, see the text mode, use football fusion or see the 3D game, 
choose football fusion. Then, when you're in the match, press ESC whenever you 
want, and choose to exit the match. The result that was in the moment you exited 
will be the result of the game. This way you can make 1-0 and avoid taking goals 
and yellow or red cards before the game ends and after you made the goal.