yeah, look here:
To apply an update to an Office administrative installation point
1.. Download the self-extracting executable file for the update and
double-click the file name to extract the MSP file.
Administrative updates for Office 2003 are made available on the Office
Resource Kit Web site.
2.. Connect to the server share for your administrative installation
point.
You must have write access to the administrative installation point on the
server and the appropriate privileges to carry out the task, including the
Change privilege.
3.. On the Start menu, click Run, and then type the Windows Installer
command line with the appropriate options for your installation. Use the
following syntax:
msiexec.exe /p [path\name of update MSP file]/a
[path\name of MSI file] /qb /lv* [path\name of log file]If an update
contains multiple MSP files, you must run the command line separately for
each MSP file that you apply to the administrative installation point. You
cannot reference multiple MSP files on the same command line.
The following table describes the command-line options.
Command-line option Description
Msiexec.exe Executable file name for Windows Installer.
/p Directs Windows Installer to apply an update to an existing
installation.
[path\name of update MSP file] Path and file name of the MSP file for
the update.
/a Directs Windows Installer to perform an administrative installation
of a product on a network share.
[path\name of MSI file] Path and file name of the Windows Installer
package for your original administrative image.
/qb Sets the user interface to the basic level (simple progress and
error handling).
/lpiwaeo Turns on logging and sets a path for the log file. The
default setting /lpiwaeo logs a subset of information, such as error
messages and warnings. Use /lv* to log all information.
[path\name of log file] Path and file name of the Windows Installer
log file.