Software :: Trying To Load Leopard (10.5) On G4 Notebook?

Does anyone know if I can load Leopard on my notebook - it is currently running 10.3.9 - it has a 1.33 processor - according to what I found in the leopard info it should work but I tried for over 8 hrs yesterday - and all it does is sit there and spin with the little color wheel - I am getting very frustrated - I started all of this because my wife bought me an Ipod touch - which after several hours I figured out was useless without a system upgrade - so I decided after spending the money for Leopard I might as well upgrade to an Iphone instead of just the ipod - but now I am regretting it all - $460+ for a phone and case and $129 for the system that as of yet still doesn't work and I talked with the guy who usually upgrade my macs and he said 2 hrs per machine at $95/hr to load the upgrade and ooh yeah make sure your whole computer is backed up because leopard has been known to wipe everything out?