[Maukoo]

 Cheers for the reply MB1968 , found where to put it in my case it was Settings - System - Addons - Metadata and Artwork Module - API Keys, but still hasn't helped me get the scores, ratings or votes to show , cheers 

After you have entered your key you need to delete the simplecache.db file so it picks up the new ratings. Go to file manager. Navigate to .kodi/userdata/addon_data/script.module.simplecache  --> Delete simplecache.db

Note: If you dont see the .kodi folder you may need to enable the hidden files and directories option in kodi settings. 

Cheers Maukoo that sorted it, but even though I had hidden files enabled I still couldn't see the simplecache.db file in kodi files manger so just deleted it in the installation dir. Thanks

Yes. That's another way of doing it.