This would be the Deleted Items in your personal folder.
If you emptied that Deleted Items folder, try this method of recovery:
http://www.howto-outlook.com/howto/restoredeleteditemsfromanoutlookpst.htm
Good luck! Post back and let me know how you made out.
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Kathleen Orland - MVP Outlook
Outlook Tips: http://www.outlook-tips.net/
http://www.howto-outlook.com/