1.6. How do I view/edit someone else's Outlook calendar
When someone shares his or her Exchange calendar with you, you can access it using Outlook 2003, Outlook 2007, or Outlook 2010. You must open the shared calendar before you can see it.
Open a Shared Calendar in Outlook
To open a shared calendar in Outlook 2003, Outlook 2007, or Outlook 2010, do the following:
Click Calendar on the side of the window, or click Go > Calendar.
Do one of the following:
Outlook 2003 or Outlook 2007: Click Open a Shared Calendar...on the left side of the window.
Outlook 2010: Click Open Calendar. Then click Open Shared Calendar....
Type the last name or ULID of a person who is sharing a calendar with you. Then click OK.
If Outlook finds more than one match to the text you entered, you will be prompted to select the person whose calendar you want to open.
The shared calendar will open to the right of your calendar.
The shared calendar will remain available in Outlook after you follow these steps the first time. You can display or hide a shared calendar using the check box next to the calendar's name on the left side of the window.