<The MPE platform has to my knowledge only one software offering. >
Ah, good, now we get down to some facts. Now I can see where you are
coming from. MPE, however, supports two well know ERP systems and a
couple of less well known ERP and/or MRP manufacturing systems.
Try http://dmoz.org/Computers/Systems/HP_3000/Business_Applications
(and that list is probably not complete)
- Cortlandt