COD MW 2 Trainer

Hi, I was wondering how to make a Trainer for MW2. Some people use VB8+CE.
I don't understand how they combine those to together. I can make the Interface to look how I want it on VB8. But, the problem is, is using the Cheat Engine to get codes or something.

I know how to find addies, Exp Hack, Unlimited Ammo.
Any help is appreciated. Thanks!