The user would have to create a new Activities group for each folder in the mailbox that you want to see (and have permission to view). You won't be able to use the consolidated view that the user himself has.

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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
>I have "Publishing Editor" permission on a fellow employee's Contacts in
> Outlook (we are both on Exchange Server). However, when I open one of his
> Contacts and click on the Activities tab for that Contact, the Activities
> area will not open. Instead I receive an error message that says "The
> operation failed. An object could not be found." Any help as to how to
> remedy this is appreciated.