10.3.9 help PowerPC g4

[Stressedelephant]

I just got this laptop and I'm new to Mac. Every time I open safari it crashes on certain websites and I can't seem to update flash as it says flash is incompatible with my OS. I was thinking a fresh install of the OS would be my best bet but it appears I can't run snow leopard because info not have an intel CPU. Which OS should I run that will give me the least amount of compatability issues?

 

[RubberDuck]

I don't know about safari crashing on certain websites but I always use firefox because (apart from the fact that it's faster) safari doesn't seem built to use flash. I have never been able to install flash for safari but works fine on firefox