SP1 update an administration central point = break client installation

[Jéjé]

Hi,

I've deployed Office 2003 through the active directory (using a GPO)
Its an administrative installation point.

My GPO deploy Office 2003 at the machine level (by assignation)
After I've updated my central point to the SP1 using this command line:
msiexec /p patch.msp /a pro11.msi

but I've some problem to update my stations
some of the commandlines describe on the MS website doesnm't works (setup
reinstall=all, msiexec commands...)

Now, my user cannot go through the add/remove program to update (to
add/change the config) because the version mismatch!!!
(the user cannot change or remove office 2003)

So, anyone has the complete steps to update the stations?
does I have to keep 2 version of my administration installation (1 with SP1
apply, the second without the SP1 apply)?

thanks.

Jerome.