Here is the answer: the EARLY Ti, 400 & 500 for sure, maybe 550 not sure, will fit any white iBook. The connector is the same. However the tabs to hold it in place are not. These can be "adjusted" to work, the second problem is the cable itself. It routs differently on the Ti so it kind of folds wierd on the iBook, causing the keyboard to bow up slightly. I had one in my dual usb and then my G4 for a while and it looks real cool. There is a major problem with this. The bowed keyboard causes the lid of the laptop to depress keys when it is closed, So rather than sleeping it will continually spin up and down, eventually causing it to overheat. My suggestion is to do a key swap, pull the Ti keys off and replace your iBooks keys with them. Safer and looks just as good.
I didn't realize some were different, I moved my black keyboard from my dual usb 500mhz g3 to my ibook G4 1.2 ok. But i never tried any models in between. I think the best bet is swapping the keys...