If you do delete those extra heads, you also delete those props with the missing geometries. For Mac users with the Poser Pro Pack installed, there is an additional nasty surprise with the original cr2 file. You'll find that the cr2 file looks for the textures of those two props in their German names! That means that when you click on the button to stop Poser from looking for those files, Poser will quit and a dialog box will pop up saying that it quit due to a Type 2 error. This crash does not happen if you have Poser 4 only. I resaved that cr2 file with Poser 4 and made sure that the textures for those props were set to None to avoid having Poser ask me where the textures are everytime I choose Millie JCM as my character.