Try Tools, Options, Delegates. There should be a button to add people there.
Then you can select the permissions from there.
> When I select the "share my Calander" option in Outlook, there is no tab to
> "add user." All of the other users on the network have this option and I do
> not. How to I make this option available in order to share my contacts and
> calander with other users on the network?