cannont install outlook filter kb905648 Error 1931 & 1402

Installation of the office update kb905648 outlook email filter failed.
i ran decect and repair in outlook and got the following errors:

Error 1931. Setup cannot update file C:\Program Files\Common
Files\Microsoft Shared\SPEECH\1033\SPCPLUI.DLL because it is protected
by Windows. You may need to update your operating system for this
program to work correctly. Contact your Information Technology
department for assistance.

Error 1402. Setup cannot open the registry key
HKEY_LOCAL_MACHINE\Microsoft\Windows\Current Version\Setup\Migration
DLLs. Verify that you have sufficient permissions to access the
registry or contact yoiur Information Technology department for

I am a one man IT department with ZERO schooling, i told the user he
was screwed :)

We are running XP pro with Outlook 2003. our network is Server 2003,
we run Microsoft Exchanger Server. Let me know if you need any other

Thank you!