404 and Page Not Found error on Sharepoint Site - microsoft.public.sharepoint.windowsservices

Message from discussion 404 and Page Not Found error on Sharepoint Site
Path: g2news1.google.com!postnews.google.com!n76g2000hsh.googlegroups.com!not-for-mail
From: mattput...@gmail.com
Newsgroups: microsoft.public.sharepoint.windowsservices
Subject: 404 and Page Not Found error on Sharepoint Site
Date: 28 Mar 2007 12:12:41 -0700
Organization: http://groups.google.com
Lines: 16
Message-ID: <1175109161.699907.211080@n76g2000hsh.googlegroups.com>
NNTP-Posting-Host: 66.147.118.220
Mime-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
X-Trace: posting.google.com 1175109163 28037 127.0.0.1 (28 Mar 2007 19:12:43 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Wed, 28 Mar 2007 19:12:43 +0000 (UTC)
User-Agent: G2/1.0
X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3,gzip(gfe),gzip(gfe)
Complaints-To: groups-abuse@google.com
Injection-Info: n76g2000hsh.googlegroups.com; posting-host=66.147.118.220;
   posting-account=tZl0DA0AAAC2FNU0LZctiRUqB7TU5AsH

My 2003 server downloaded (w/in the last few days) an update for
Windows Sharepoint Services 3.1 (KB932091).  I ran the install and it
seemed to lock up before completing the install.  I ended up having to
reset the server and I ran the update again after the restart.  It
completed with no problem.
However now I cannot access the pages I've created on Sharepoint nor
the Central Administration Site.  I'm prompted for credentials when I
try to browse to it but get 404 Not found error on my workstation and
Http/1.1 404 Connection Close error when trying to browse through IIS
on the server (also prompted for credentials there).

I'm hoping someone more knowledgeable than me experienced this after
the Auto Update and can help out.

thanks