2 Questions about Game Hacking

Hi.


on last week i read about game hacking..

and i always i wanted to hack games.

so i open IW5SP and try to hack it.
on single player.


1
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i try to hack my ammo and find address.

when i quit game and back to play all address has change to me.
i read about pointers and i understand i have to find it.

the problem, i have 4 address to ammo.

i dont know how to find the Pointer....




2
____

i want to call a Address.

i mean, if Address to walk left is : 005f47a.

so i want to call this address. and i character walk left 1 times.



i'm using VB to build trainer.


Thanks you guys, i wait for help.

Primary Ammo 01382118
Secondary Ammo 0138213C