here are some codes there not mine but there the codes some are repeats i don't know if any work so good luck.....

#Infinite Ammo - Uzi
0x00FBE340 0x1E

#Infinite Ammo - pistol/shotgun1
0x00FBE340 0x1E
0x00FFCDF0 0x04
0x00F05400 0x05
0x00E49980 0x06

#Walk Through Walls
0x000F0AD0 0xAF22
Walk through Walls: 000F0AD0 0x0000AF22

#Ahh Im Danny
0x00D07AA0 0x01
0x00DEB880 0x01

#Infinite Health
;Works In All Levels
;Cheat Hz 15/1000
;Credit DUDASH
0xFFFFFFFF 0x00895ABC
0x000000B0 0x42F50000

#Infinite Pistol
;Cheat Hz 15/1000
;Credit DUDASH
0xFFFFFFFF 0x00321384
0x00000FE0 0x00000063
0xFFFFFFFF 0x00321394
0x00000FE0 0x00000063
0xFFFFFFFF 0x003AFCE0
0x00000FE0 0x00000063
0xFFFFFFFF 0x003B1F20
0x00000FE0 0x00000063
0xFFFFFFFF 0x003B2430
0x00000FE0 0x00000063

#Infinite Revolver
;Cheat Hz 15/1000
;Credit DUDASH
0xFFFFFFFF 0x0038FDD8
0x00000080 0x00000063

#Infinite Shotgun
;Cheat Hz 15/1000
;Credit DUDASH
0xFFFFFFFF 0x00321380
0x00000FE0 0x00000063
0xFFFFFFFF 0x00321390
0x00000FE0 0x00000063

#Infinite Uzi
;Cheat Hz 15/1000
;Credit DUDASH
0xFFFFFFFF 0x00321384
0x00000FE0 0x00000063
0xFFFFFFFF 0x00321394
0x00000FE0 0x00000063
0xFFFFFFFF 0x003AF944
0x00000FE0 0x00000063
0xFFFFFFFF 0x003B1F60
0x00000FE0 0x00000063

#Infinite Uzi
;Cheat Hz 15/1000
;Credit DUDASH
0xFFFFFFFF 0x00321384
0x00000FE0 0x00000063
0xFFFFFFFF 0x00321394
0x00000FE0 0x00000063
0xFFFFFFFF 0x003AFEC4
0x00000FE0 0x00000063
0xFFFFFFFF 0x003B1F20
0x00000FE0 0x00000063
0xFFFFFFFF 0x003B2430
0x00000FE0 0x00000063

----Added 18/3/2009 at 3:10 PM----
o and rep if these help u thnx...