Tony,

Since the updates are all August 2007 and later, why not see if they are
listed in Add/Remove Programs in the Control Panel as a first step ?

What changed on the system in August that could possibly have caused
this ? A new firewall, antivirus, network, etc ?

The .NET update is a separate issue and may require uninstalling .NET
Framework 1.1. Suggest you deal with the other updates first and leave
that for last. You may be able to repair .NET instead of having to
uninstall it.

You could always download the Microsoft Baseline Security Analyzer and
get a 3rd opinion:
http://www.microsoft.com/downloads/details.aspx?FamilyId=4B4ABA06-B5F9-4DAD-BE9D
-7B51EC2E5AC9&displaylang=en

IF running the above confirms Belarc's findings -

You can redownload the updates manually from the MS Update Catalog and
*save* them:  http://catalog.update.microsoft.com/v7/site/Home.aspx

The Update Rollup 1 for Windows 2000 SP4 is KB891861. Enter the KB# of
the updates in the Search field and add them to the download basket.

You can attempt to install the updates in question on top of the already
installed updates. I would not.
Suggest you uninstall the updates listed by Belarc one at a time,
reboot, then reinstall them one at a time.

IF any of the updates are listed in ARP, then try to uninstall them from
there.
If any of the updates are *not* listed in ARP, then suggest you show
hidden files, folders, and system files. Using Windows Explorer, locate
the $NtUninstallKBxxxxxx$ subfolders in WINNT and use the uninstaller in
that subfolder to uninstall the non-verified updates.

MowGreen  [MVP 2003-2008]
===============
 *-343-*  FDNY
Never Forgotten
===============