I found this cheat on supercheats.com
Have all Jobs
94000130 fffb0000
D5000000 00000101
C0000000 0000000a
D7000000 020B77CE
D2000000 00000000
although you may need to convert it so cyclods or whatever can use it by the way its a action replay code
im just a geeky 12 year old trying to help.