So, what version should I go with? Also, do you have a link for evox?

I bought a used original XBOX and it has XMBC 1.0.1 on it. I want to upgrade it to the latest XBMC build and also put Kodi and Emulator games on it. I'm computer savvy but not for sure on this stuff on how to proceed with the upgrade. So, if anyone can help get me straight and tell me what to do tha...