well i finally got the yafray to work!
come to find out, the .0.0.6 version installer works perfectly.
nothing to set up, nothing to turn on, not even a specific directory to install too.
just download it here www.rusmannx.com/yafray.0.0.6win.exe, install it, set the path in blender (it’s in user preferences), select the yafray engine and your done!!!
i hope no one minds me hosting this file on my site for people to download. if i’m not supposed to then i’ll delete it from my server.