copied from helpdesk.ilstu.edu/kb/index.phtml?kbid=1326
By default, when you launch Outlook it opens to your Inbox. You can create a shortcut to Outlook so it opens to your calendar instead. To force Outlook to open your calendar as your default view, do the following:
1.Right-click on your desktop and select New > Shortcut.
2.Provide the location for the shortcut to Outlook 2003:
“C:Program FilesMicrosoft OfficeOffice11Outlook.exe” /select outlook:calendar