Let's clean up the situation for everybody's good:
1. The Prerelase AOS4 CD does not contain Petunia in any form. It uses the interpretive emulator (formely known as Black box).
2. The interpretive emulator knows all opcodes up to 040+881, and a 060 has even fewer opcodes than a 040, so this cannot imply the crash at all. The system reports only 020+881 for compatibility reasons, but it does not bother too much. You can install any software what is not using MMU and special tricks/traps to determine FPU type and similar things on a non-system friendly way. (Like identify.library does - if I remeber correctly the name of it.)
3. Just as KennyR wrote: 68k processor optimized versions won't be faster normally under the emulation at all. (Probably the specially 040 optimized with MOVE16, but it is highly doubt.)
So all in all: if something crashes that is not caused by a missing opcode from the emulator. I suggest to install 020+881 software. :-)
