How do I install CC Sims in TS2 Legacy?

First I do have Clean Installer, and I long ago added Sims that I had gotten from Mod The Sims years ago, along with ones I made in Body Shop, which show up fine, and I had used Clean Installer when reinstalling them into the New TS2 game. 

But yesterday I downloaded a bunch of new Sims from Mod The Sims, and used the Clean Installer to try and install them in my game, but when I checked in my game, they weren't there. And I am now wondering if they actually went into the game or not, since it is different from the original or the Ultimate Collection. 

I even thought that when I used the Clean Installer, and it created a new The Sims 2 folder in EA Games folder, that what I found there was it, because it did work to get the lots, and it has the makeup from the Sims, which does show up, it's just the actual Sims that don't. Which makes me wonder if it doesn't work because we don't have Body Shop. 

So I am asking if I am just missing something here, like is there some trick to getting the Sims themselves to show up in CAS?