Hi Jim,
so you've not found the MSU?
A red MSU means that the original (yellow color) has already been replaced.
Another substitute is then not allowed.
ME10 under Hp-ux is for me a long time ago so I do not very well remember.
Probably someboddy else?
Another idea for >The Company only wishes to open and print old drawings from the server.
Can you copy the drawings from the UX server to a normal Windows PC?
If yes
Does the company use eventually Creo Elements Direct Modeling?
If not I would install the freeware version Express6 from this 3d program.
Modeling and Express6 can open me10 drawings in the Annotation 2d section.
Download:
http://www.ptc.com/cad/elements-direct/modeling/express
Create a account, download the software, install and try to open the drawings.
Probably you have to rename the drawings without extension to xxx.mi
I wish you success