Several programs crashing...

Hey, wondering if anyone could help...
I recently got my Mac back on (my girlfriend broke my charger a while back) and ever since i've been having issues.
It seems that whenever i try to watch a video, or load a content heavy page on Safari it just crashes which in turn causes MSN messenger to crash if it's running.
I would normally be using Firefox but that won't run at all since getting the mac back on...

thanks in advance.

EDIT: tried to upload the safari crash report but it's too long apparently haha

 

The only disk i have that came with my mac (it's an ibook G4 by the way) is my applecare disk which comes with TechTool Deluxe, i ran that and everything passed ok.