HL Faceposer - is it still functioning?

So, when the SteamPipe update came, literally everything to do with a functioning Source SDK went with it. I’m aware that you start Hammer through the actual program itself and everything works from there, but how do you get Faceposer working? I actually managed to get it started, but it wasn’t before then that I realized Valve has everything in .vpks now, so I can’t really load any models for use in it.

I ask because I’m working on a GMod series and I’m using a bit of unconventional methods.

Thanks!