Installing Tiger on a Lombard

So I know it's not a supported Mac but supposedly you can get Tiger on the Lombard using XPostFacto. If you look on the OWC page for it, it says numerous times that the PowerBook G3 (Lombard) is supported by XPostFacto and can have Tiger installed onto it. But when I open the application in OS X Jaguar (you need either OS 9, or 10.2 - 10.4 for it to run) it says that my model "PowerBook 1,1" which is the Lombard is not supported. I googled this to make sure, the model identifier "PowerBook 1,1" is the Lombard, and I have it. The Lombard also has a 333mhz cpu, which mine has. I'm stumped.

It's not a required thing for me to have, I'm mostly just bored and thought it would be neat. Help appreciated.