Ah, I see what you're up against.  It must have been saved as a multi-part PP2,  if you haven't had to cut it up.  All is not lost, but it will take a little extra work to turn it into a figure.  That's really what would work best.

You need to export the whole thing as I advised above.  Then you need to import it to UVMapper and do some careful grouping.  Any part that needs to be posed separately should be assigned to its own group.  Everything else should constitute the main group.  Call it fuselage or something like that, but not body, to keep from confusing Poser.

Then to bring it back in as a figure you need to make a PHI file and load it that way.  I don't use the setup room, and I doubt that is any easier with a mechanical object.  The setup can be done in the pose room using the joint editor.

How to make the PHI file is a bit too much to explain here, so you can mail me at : BeyondVRataol.com (change the at to @)  There is a utility, PHI Builder or something like that, to do the job for you, but I have learned how to do them by hand since many of my models are too big for it.  If you can supply me with the exact names of the groups, and the hierarchy, I can make it for you.

It's up to you, but I doubt that you'll get too far with it as is.

John