new programs need minimum OS 10.4.11, current OS 10.3.9
You need to purchase a copy of 10.4 http://computers.shop.ebay.com/Oper...
If your Mac has the speed and RAM I would skip 10.4 and go straight to 10.5
http://computers.shop.ebay.com/Oper...
iMac G5 1.8GHz "Hero" PowerPC
2 x 1GB DDR PC3200 SDRAM
160GB WDC WD1600JD-40GBB2
Mac OS X Leopard Version 10.5.8