3. In Outlook 2010, select "File" then "Account Settings." Select the "Internet Calendars" tab. Click "New," and then paste the iCal URL into the field. Click "Add."
4. The name of the calendar file will display next to "Folder Name." Change it if necessary. Add a description to make the calendar easy to identify if you install additional calendars.
5. You do not have to select the checkbox under the Attachments section.
6. When you are finished here you can click OK.
7. Click "Close" on the Account Settings page, and you will be returned to Outlook 2010. The calendar will not display in your Outlook Calendar until it syncs with your email. You can force Outlook to sync by pressing the "Send/Receive" button in your toolbar.