Try running the ASCII export to PADS VX.1, then import, Save and then ASCII export to PADS 9.5.
Also, you should be able to open the *.asc file and find the referenced object. If you export the design in the "current" units, you can start to manually/eyeball decode the X,Y locations.
You can also submit a Service Request and ask the Mentor folks to send you a fixed (error correct) database.