ocr: GuestBook Column Data Type UseriD (primary keyl AutoNumber InsertDate Datelime FName Text (15) LName Text 120) EMail Text (50) Age Text (5) Gender Text (1) IncludeMe Yes/No UserNotity Column Data Type UseriD primary key) Long Integer CategorylD primary keyl Long Integer Mailings Column Data Type LastDate primary keyl DateTime Figure 3: The three table structures used to implement the user notitication tunction,