I'm experencing some problems with Ifusion too.
i tried to install MacOS 8.6, but after I configure it and lunch the emulation I only get a black screen that is switchable with the workbench one and the amount of memory given to macos emulation disappear from the workbench bar. AmigaOS is still completely usable though.
I have a 200Mhz CSPPC a Picasso IV and a Voodoo3 (on a mediator) all used with Picasso96, moreover I tried to install it both on a SCSI3 Partition and on a IDE one with the same result.
What's wrong?