i have a feeling this is because of old mac software (os x 10.3.9). i thought there must be some mac users on here so was wondering is there anyway i can update this, or what other applications should i try instead of msn etc.
10.3.9 isn't that old - Jaguar i think.
write to Graham - Gman <macmadosx@yahoo.co.uk> and he'll sell you all sorts of nice software to make it better; about £20/£30 for 10.4/10.5.
Saying that, i've had two iBook G4's go down on me due to dry solder issues.. yours may not last until post arrives..!

http://www.xlr8yourmac.com/tips/iBookG4_vreg_repair/ibookG4_vreg_repair.html