Office Admin Tool, update problem

[Newbie]

Hi,

I recently packaged up Office 2003 to include install options, plus
slipstreaming Office 2003 SP1 into my original Office 2003 CD. It's working
great except now it's time to upgrade to SP2, I can't do it through Office
Update site. I get this message for SP2:

You need the administrative version of this update due to previously
installed administrative updates.

I'm still new to Office 2003 Resource Kit, hopefully I didn't do anything
wrong when I created the MST file.

Thanks,

Simon