Hi,
Welcome to Microsoft answers.
I suggest you to uninstall the KB completely from add or remove programs, download the stand alone package from the below link and try installing.
http://www.microsoft.com/downloads/en/results.aspx?freetext=KB973704&displaylang=en&stype=s\_basic
I suggest you to refer this link for same issue ( KB976416)
http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/ec4fd290-de84-4979-ac40-1f38bb0ed9c9
If you still have the problem then I suggest you to contact Microsoft Office, please access the below link and find a community that will offer you a better support.
http://www.microsoft.com/office/community/en-us/FlyoutOverview.mspx
Thanks and Regards,
Azam – Microsoft Support.