That should work. Without actually trying it, 10.2.8 should be a safe bet. I'm guessing that for 10.2.7, you'd need the build specific to the Powerbook(much like with the first gen G5s).
yeah...i saw that, there is some tweak to it and the G5 having smthg to do with it, to which i did not understand anything !
Downloaded the 10.2.8, lets see how it goes.