The more recent versions of the Cutline Theme use a dynamic header image, which is based on what kind of page a blog is currently showing. At present, for version 1.3 there are five default images that can be found under the /images folder as header_x.jpg (where x = 1 to 5), which rotate in random.
I’ve received several inqiuries on how to set a static page instead, either just to set one of these images as the sole static image, or to replace it with another one–perhaps an image with the blog title or a corporate/brand header image perhaps.
One solution would be to rename the image you want as the single static header image to header_1.jpg, header_2.jpg, header_3.jpg, header_4.jpg and header_5.jpg and upload these into the /images folder. That would take some space, though. While this is negligible for most people, the few milliseconds processing time it takes for the server to randomize from 1 to 5 might be a concern if you run a site with huge traffic.
The better way to do it would be to access the header file header.php from either FTP or the WordPress theme editor, and look for these lines below:
<img src="<?php bloginfo('template_url'); ?>/images/header_<?php echo(rand(1,5)); ?>.jpg" width="770" height="140" alt="<?php bloginfo('name'); ?> random header image" title="<?php bloginfo('name'); ?> random header image" />
You will notice the part that says header_<?php echo(rand(1,5)); ?>.jpg which outputs a random integer from 1 to 5. If you wish to set any of the five built-in images as the sole static images, just replace header_<?php echo(rand(1,5)); ?>.jpg with header_X.jpg with X being the number of the image file name of your choice.
Or if you’ve already uploaded your custom header image onto the /images folder (prescribed dimensions are 770 x 140 px), you can just simply replace the entire thing with the filename of your image.