How do I change the square box into an oval?

You can remove the square box by clicking on it and hitting delete on your keyboard. Then using your drawing tool create or draw an oval circle in its place. Look for the drawing toolbar in your Microsoft Word/Publisher window. For MAC iWork Pages users, select the shapes at the top of your iWork Pages window and choose the oval shape. 

Once you have the oval drawn, simple insert the photo as we instruct you in our video tutorials under the VIDEOS TAB. If you would like to see this visually, visit our HELP TAB video on how to change the front cover photo shape for your specific software.