Adjust this header and image and upload

I would like the header below: [login to view URL] to resemble the one here: [login to view URL] Notice on my blog how the form and the image of the eBook are actually part of the header vs separate entities. This is what I would like for my main website as well - but I don't want the dog image to change in this. I still want the dog sitting in the sunset. I would also like you to take a look at why I now have to scroll over to the right to see my entire page which I didn't have to do before. Hope this makes sense.