DST patch for Outlook and Exchange

I have been reading article after article about the DST patches for Windows, Exchange, and Outlook and I am still confused on whether we need to patch both the Exchange Server mailboxes AND Outlook on individual workstations.

I've downloaded the Windows XP SP2 patch, the Exchange Server 2003 patch, the Windows Server 2003 patch, TZmove.exe and have the TZEdit Utility.  If I apply the Exchange Time Zone Update Tool to all mailboxes on the server, do I still need to apply do the TZMove locally?

Microsoft KB article 931667 says: "You do not have to run both the Outlook and Exchange versions of the Time Zone Data Update Tool".  This support article -  http://office.microsoft.com/en-us/outlook/HA102086071033.aspx - also says "All users should download and run the Time Zone Data Update Tool. Alternatively, in environments running Microsoft Exchange, a special version of this tool may be used by IT administrators to update multiple Exchange mailboxes."  However, directly below that are Steps to be Taken and Step 4 says "End users use the Time Zone Data Update Tool. IT administrators use the Exchange version of the update tool."

So do we or do we not have to run the update tool for Office Outlook on the local workstations?

And just to be sure, these are the downloads I have found for the different areas to be patched:
Windows Server 2003:  WindowsServer2003-KB928388-x86-ENU.exe
Windows XP SP2:  WindowsXP-KB928388-x86-ENU.exe
Update for Exchange 2003:  Exchange2003-KB926666-v2-x86-ENU.exe
Windows operating systems other than XP SP2:  TZEdit.exe
Outlook:  TZMove.exe

Have I missed anything?

So tell me, Experts, are we having fun yet?

Laura