A couple of problems. First is that you are running that theme out of
wp-content/themes/cutline/cutline-3-column-split-11/
You might want to backup your files and try moving cutline-3-column-split-11 down to wp-content/themes so your theme will be located in
wp-content/themes/cutline-3-column-split-11/
The second problem is that the image you are trying to load is at
https://saygoodbyetothepounds.com/archives/Say%20Goodbye%20to%20the%20Pounds/images/header_3.jpg
That does not exist so you get a blank space.
It should be
https://saygoodbyetothepounds.com/wp-content/themes/cutline/cutline-3-column-split-11/images/header_3.jpg
If your header.php still has this:
<img src="<?php bloginfo('template_url'); ?>/images/header_3.jpg" width="970" height="140" alt="<?php bloginfo('name'); ?> header image 3" title="<?php bloginfo('name'); ?> header image 3" />
Then moving the theme to the themes directory may just fix the problem.
Backup your files so you can undo anything you try and good luck.
