Vampires - Drink All You Want

I am trying to use this and having all sorts of problems--does it still work? Am I doing something wrong? Downloaded from MTS, with the "don't lose relationship" option and the plasma packs give more thirst (what I was mostly interested in). With it in my mods, my vampires can't drink from sims at all and plasma packs give them 0 thirst. Help! I really want this to work or find a similar mod that gives my vampires an easier way to fill thirst without having to deep drink from five different sims every day.