Greg, I will get you direct re the textures.
It is not the cr2 - it is the obj file.
You have Millie.obj, or at least did.
To quickly get what you are after, you can try this:
Read Millie.obj in Compose.
select the hip and save it as a separate group.
Clear the program
Read blMilWom.obj
select the hip and delete it.
Read the hip from Millie
check the box that says the merge the group with the current file. (this is not the merge in the bottom section of the main program.)
Select the main group icon and save the new figure with a different name.
Text edit a CR2 to load this new figure. If I guess right, you will then have a Vicki with just Millie's hip remap.

I just don't see the point of a hip switch. Even with Mike, I would probably just do a morph that pulls his plumbing inside his hip or just make the group(s) invisible for clothing. The geometry switch thing seems to be a neat trick in search of a purpose.