I uploaded a background header for site. I made the image 1920 x 450 as specified.

1. there is a few pixel white gutter on each side of the image on the site, not sure why given image was made specified size
   1. http://jintradingsystems.com/blog-grid-right-sidebar/
2. I set a unique background image in theme options on About Us Page and it does not display … thoughts?
   1. http://jintradingsystems.com/about-us-2/
3. Another image was uploaded to products and then to services, those images are not displaying … thoughts?
4. Where does the background image option specified on the individual pages display? , I uploaded a header banner on about us page and it did not display – I looked at the parallax example and its header was uploaded as background image from its own page .. so i thought this would work on contact us but it did not. Where does the background image specified on a page load?
5. How do I change the URL name of the pages?