Help with blockhead?

[vegaorc]

Hey guys, I was wondering if anyone familiar with blockhead could help me.

 

I'm using blockhead so I can, among other things, use a custom head mesh. I want to the changes to apply only to the player character and only to the orc race.

With that in mind, I placed my head.nif file inside the proper folders and renamed it to "00000007_head.nif". What happens is that every race (but only the player character, as expected) is now using the same head mesh and this is the only way it seems to do anything.

If I rename it to ""00000007_headorc.nif" nothing happens at all.

 

So I'm wondering, how can I lock that custom headmesh to the orc race? 

Thanks in advance.