Harmony hub help with Items,Sitemap,Cfg file please help

Hi there I am new too all this and am just trying to connect Harmony hub I have looked at openhab wiki but I don’t understand it please can someone break it down in simple steps as possible ? I have entered stuff in Items,Sitemap,Cfg file but its not working may be am doing it all wrong please people help been struggling for a few days now and am not getting anywhere

Cfg file