The best way to protect information in a table, and still allow users to enter or modify information, is to create a form in Microsoft Word 2000. You can use a table to lay out the form, and then add form fields where others can enter information. When you are through, you simply "lock" the form to prevent unauthorized people from changing the form, except in the areas that you specify. You can protect the entire form, or you can protect parts of the document by placing the protected parts in separate sections.
You can find detailed descriptions on how to design forms using tables and how to create forms in the Help in Word. For more information about creating forms, type create a form in the Office Assistant or the Answer Wizard tab in Help. For information about using tables to lay out a form, type designing a form in the Office Assistant or the Answer Wizard in Help, and then click Search. For information on creating sections, type insert sections in the Office Assistant or the Answer Wizard in Help, and then click Search.