Seifer is the one who remade that mod as Weidu.
He and other have stated (on threads I am too lazy to find) that TDD is not required to use the "Forgotten Children" mod.
So ignore that header in the readme that makes it sound like it only works with TDD.
Thanks so much, MTS. Yes, the line in the readme did indeed make it sound that way. I'll try it out this weekend. Yipee!