That is what I have too. cybppc.library version 1.2
You also need the correct 68040 and 68060 library I think.
I have 46.7 and 46.14 respectively.
If you do get it working you can also not use the latest version of CyberGraphx. So no version 4.3 RC5. You need the last beta. Version 4.2 beta 11 I think it was.
Anyway, my cgxsystem.library is version 42.6 and not 42.7 like it is in version 4.3 RC3 to RC5. Maybe RC2 lowers the version to 42.6.