Did you use Notepad to edit the exported .reg file and change HKEY_CURRENT_USER\Software\Microsoft\Office\9.0\Outlook\Categories to HKEY_CURRENT_USER\Software\Microsoft\Office\11.0\Outlook\Categories?

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
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>I have used kb article kb197342 to export registry data and imported it into
> another cpu but only adds it into office 9.0 and in 11.0. Checked the master
> category list but did not add the extra categories