in your head geometry (in gmax), attach your head stuff to a dummy located at 0,0,0.
Now move that dummy to [-0.114455,-2.421898,-3.864850]. You can do this with the maxscript listener by simply selecting your new dummy, then type this in the listener window and hit enter.
selection[1].position = [-0.114455,-2.421898,-3.864850]
That is the approximate offset between OC and HoTU for female heads. I don't know the exact number, but this is very very close.
Now parent your head parts back to the aurora base and delete the temporary dummy.
Export and your head should look fine.
If you have to perform this process on multiple heads, use this quick code in the listener window to affect all selected aurorabases.
for obj in selection do (
if ((classof obj)==aurorabase) then (
for child in obj.children do (
child.position += [-0.114455,-2.421898,-3.864850]
)
)
)
You could also save that as a maxscript file and just run it when you needed it, like if you find more lower version heads you want to convert.
Edit:
Sorry, I forgot the listener window only takes single line commands, so try this one-liner:
for obj in selection do (if ((classof obj)==aurorabase) then ( for child in obj.children do (child.position += [-0.114455,-2.421898,-3.864850])))
