Comment on WordPress Header Images by SEO Dave.

WordPress Custom Header Options The WordPress tagline you can leave blank, but the WP site title tag is extremely important and should include relevant keywords for SEO reasons.

To use just a header image as you want there’s a setting to hide the site title link from the header area under Stallion Theme >> Layout Options.

On that page you can also relocate the sites tagline to the footer if you still want a tagline, but not on the header.

BTW notice you are using what appears to be an AdSense plugin. Since Stallion has AdSense built in you’ll need to either disable the AdSense plugin or turn off one or more Stallion controlled AdSense ads as right now you are breaking the AdSense TOS by having more than three AdSense content ad units. If you run with default Stallion AdSense setup all three AdSense content ad units are used.

David