[G4] safari upgrade path & crash problem

[Tony Dabney]

I have G4/125GHz and finally figured out where and how to upgrade OS X
10.1 to 10.3.9 and Safari 1.1 automatically upgraded to 1.3 (v312).
I can't log into my bank and netflix says it does not support this
(older) brouser.
I can't seem to figure out what the upgrade path is and how to do it.
Also to upgrede to a newer OS X 10.4 or whatever - is it free or a new
OS X purchase and what Safari would it have included.