It is quite hard to get a UM for a 20 years old software.
Maybe you can try to use some newer developments also.
Protel PCB2.0 is already run under Windows environment and if I remember, it is free as well.
Best Regards,
mpopovics
Orcad/PCBII: Hmmmm. Heard about it and used it last time in the school, long-long ago...