I found this in the Office Forum:
http://support.microsoft.com/?id=903772
"martinse" wrote:
> Can anyone help. I have tried many times to install the updates for Office
> 2003 (KB907417) and Outlook 2003 Junk Email Filter (KB907492) however they
> both fail to install. This is the 1st time I have had problems updating. I
> checked the forums for solutions and tried some ideas such as deleting cache,
> making sure install option are turned on, but nothing works. Open to any
> suggestions. Thanks in advance.