Why isn't path to Header showing????

Hello,

Very new to Drupal, so sorry for the noob question. :) I am really frustrated because I am using the Foliage theme and trying to change the default header. I know the path is exactly correct, but it will not show up. The path to the header image is in the foilate theme... when I type the url to it, it is just blank.

Can someone please help me????