Have been trying to update office 2003 for:
Updates for Office 2003 products
Office 2003 Service Pack 1 - English version
Update for Outlook 2003: Junk E-mail Filter (KB870765)
This optional update provides the Junk E-mail Filter in Microsoft Office Outlook 2003 with a more current definition of the e-mail messages that should be considered junk e-mail. This update was released in September 2004.
I've tried several times to download...should take about an hour and a half to download...but after an hour or so...I get disconnected from the internet.