Connection Issuse

[Stomper]

Hi all I have been trying to get something to work and while looking for a fix I found this site  I am new to your site so sorry if this is in the wrong area.

I am currently trying to make a USB NES controller so I can have controllers for NES, games on my mame arcade or my computer. The PCB for the keyboard is an 80 key generic mini keyboard. As you can see the PCB is not labeled in anyway for a layman like myself to be able to go oh the wires solder on there. Does anyone know of a good location on the web that explains how you could figure this out. I need it to be an easy to follow tutorial, Video or other place to read about this. I have searched google , bing, yahoo nothing so far I am a computer guy not a electronics guy.





Thanks in advance for any help
Dave