Start Outlook showing my Calendar, Contacts, or Tasks  
On the Tools menu, click Options.
Click the Other tab, and then click Advanced Options.
Under General Settings, next to the Startup in this folder box, click Browse.
In the Select Folder dialog box, select the folder you want to appear when
you start Microsoft Outlook.
Note  You can use this same procedure to start Microsoft Outlook with the
Journal, Notes, or any Outlook folder open.

Stewart