Using XP and Word 2003.

I want to type a Word document.

I know how to and do use headers and footers. The information in my header/footer is protected against anything I might type in my document.

What can I do if the information I want protected is on the side of the page? Is there anyway to create what I might call a sider and not have this information affected by whatever else I later type in the rest of the document?