I am administrator of exchange server 2007 and I can not access a public calendar to add or change users or permissions. I can't find out who has owner rights either, is there anything I can do?

There is a calendar in public folders that I cannot access. A new person was hired and they want to add this person as an author for the calendar. Normally, I would log into outlook as administrator and am able to add or change permissions in any calendar or folder. I even tried to create a copy of the calendar, save it to my local outlook folder, change permissions and re-copy it back to it's original location and remove the original existing calendar. However; I could not rename or delete the original calendar because I did not have the correct rights. Is there anyway to change the permissions on this calendar with someone that has author rights? Or, can I change rights or permissions or even delete it with admin rights through a cmdlet or something?
Who is Participating?
waleedaConnect With a Mentor Commented:
please check
Configuring Public Folder Permissions

specially "Administrator Access Rights" part:
In Exchange 2007 Service Pack 1 (SP1), there are two methods you can use to grant public folder administrative rights to a user:
Use the Add-ExchangeAdministrator cmdlet or the Add Exchange Administrator wizard to add a user to the Public Folder Administrator role.

 Use the Add-PublicFolderAdministrativePermission cmdlet to grant or deny specific rights to public folders.

Yiper72Author Commented:
scheduled to try this on thursday.  Let you know how it works.
Yiper72Author Commented:
Had to figure out which cmdlet to use.
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