Do the items appear in your inventory, but are invisible on your body? - in that case you need to run BodySlide. If nothing happens at all, make sure that your DD5.x is installed and running. Yes that comes with 4 esp's which all need to be installed and activated. Unfortunately you can still find the old, outdated DD assets, integration, and expansion as separate files - any of these will fuck up your installation.   And lastly: keep a small modlist for a playthrough of this mod.