You can either find it by searching the list of Analyses that were taken over in the OU index, or by using the search function in the Locked and Outdated subforum by using the key-word Tangrowth. Or by going to Swamp-Rocket's profile and checking his threads.
Huh I'm not sure. I started out in the beginnings of PS but haven't had time to get fully committed to something else yet. There are always lots of things that need work in C&C though. Maybe you could try something there?