You can only have 1 instance of Outlook installed at any one time. I suggest that you remove Outlook 2002 (from Office XP). Once removed then try and install Outlook 2007

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Peter

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wrote in message ups.com...
I have recently upgraded Office XP to 2007 pro plus omitting Outlook
from the upgrade by selecting 'Not Available' on the customized
install. When i have re-run the installer to add Outlook at a later
point the only option i get is to unintstall all Office products and
start from scratch.

I have also noticed that on occasions when running a full upgrade
including Outlook that the install fails and rolls back - again
prompting a full un-install of all Office packages.

trying to run just the OutlookMUI en-us.msi is also useless as this
seems to do nothing.