|You're running "Windows 07.10.2009"?|
Need a specific version in order to help. Without that info, I would at least tell you to reinstall IE 8.0. If you weren't running 8.0, now's the time to do it.
Windows Internet Explorer 8 for Windows XP (direct link here)
iMac G5 1.8GHz "Hero" PowerPC
2 x 1GB DDR PC3200 SDRAM
160GB WDC WD1600JD-40GBB2
Mac OS X Leopard Version 10.5.8