Creation Kit: HDPTs for High Poly Heads

[allsunday]

I followed a tutorial on the Nexus that instructed me to grab these .tri files from the Citrus High Poly Meshes Mod and now I want to find out which HDPT (head part) I need to attach them in the Creation Kit to have the NPC use the new high poly meshes.

femalehead.tri
femaleheadchargen.tri
femaleheadraces.tri

My sixth sense tells me that femalehead.tri goes with the (head).nif but what goes with the (eyes).nif or the (brow).nif or the (mouth).nif?

TLDR: Need to match 4 .nif files with 3 .tri files. Which one goes with which?

 

Update:  Apparently there's a spot in each HDPT for all three .tri files in the Creation Kit.  Now that I put them all in and exported the .nif to the FaceGeom folder, my NPC has these horrible jagged eyes in game.  Anybody know a solution for this?