Cheats for Fallout 3 on ps3

i don't think there are any cheats but you can skip half the game mission by after leaving the vault go straight to your dad in a secret vault. to find where he is go to on the website and on the Sid of this map clik on the box ncps then main characters and the cog with m in the bottem left is where he is.  http://planetfallout.gamespy.com/maps/1/Capital-Wasteland/