OK. I flashed the CSPPC with the file you linked Bamiga and it went successfully..flashing worked fine.
I then tried Thomas' disk again and, again, the PowerPC test said it couldn't find ppc.library and a returncode of 10.
I then saw Thomas' message concerning the need to reboot in-between tests so I rebooted and ran the WarpUp test. It displayed' Starting WarpOS test' but that was all...nothing happened after that and, after waiting for a couple of minutes, figured nothing was going to.