From the microsoft.public.softwareupdatesvcs newsgroup
For those of you that missed the post in the newsgroup last month here's some important information relating to this patch:

Hello everyone,

Today we changed the detection of update "FrontPage 2000 Server Extensions for Windows 2000 or Windows XP November 2003 Security Patch" (MS 03-051). Once your SUS server synchronizes with Microsoft the update will appear as "updated" in your SUS server. The change to the update was to correct the detection of that update so that it would not be offered to machines that did not need the update.

More specifically:

On November 11, Microsoft released MS 03-051 that eliminates vulnerability in Microsoft FrontPage Server Extensions, which are components of Office and Windows. This patch effectively addresses this vulnerability, and all customers affected received this patch through all Microsoft distribution vehicles, including Windows Update and Software Update Services on November 11th.

On December 9, 2003, a change was introduced in the detection process of Windows Update and Software Update Services, prompting Windows XP users who were not at risk to the vulnerability fixed by MS03-051 to download the patch. Today, the Windows Update and Software Update Services detection process was updated so that the patch will no longer be offered to customers who do not need it.

Microsoft remains committed to helping to improve the security of our customers, and we encourage customers to stay current with security updates.

Microsoft has no new security bulletins for December. As always, in the event of an emergency, Microsoft will release patches as appropriate.

Thanks

David Dehghan [MSFT]
Program Manager
Software Update Services