This seems to be just the drive and filesystem functionality from
TechToolPro in another app.
Manual says it is compatible with Puma (10.1) onwards, so might be
useful to anyone sticking with that system (perhaps for the HappyMac
?).
According to SystemVersion.plist, the bootable CD is 10.3.0 (7B85)
Compatibility
Architecture: PPC
Manual says it is compatible with Puma (10.1)