Well while experimenting with GM7 Lite a little bit, I decided to make a bank system close to one I saw used for RPG Maker VX.
So I popped this out in about 20 minutes. Basically you can just deposit and withdraw into your account, and leave. Simple enough right? I'll probably add more stuff to it so you could have an account number or enter a pin to access your account. So yeah the engine and .exe files are included in the attached .rar. Enjoy.