In Word 2007 or 2010, easy to implement different header and footer for different sections in a single document. Write your first header and footer by double click on your header and footer of first section.
If you need a different header or footer, follow the below steps:
Click the Page Layout tab. In the Page Setup group, choose the appropriate break option from the Breaks dropdown.
Go to the Section Breaks and Click on the Next Page button.
Now, Double-click in the new section's header or footer then click on Link to Previous button. (see below image)
Simply change the text or object of your header or footer. (Header -Section 2-)
In addition, if you want delete a section break, you'll lose changes you made to that section's header or footer.