After reviewing your site, I can say that the issue(s) you're having are down to the following:
1. W3 Total Cache is installed and active? W3 Total Cache is only needed on high traffic websites and should only be active once your sites design has been completed.
2. There is no navigation on your site, as there is no navigation section active on your site, there is nothing in the Header area related to navigation.
3. Your sites design issue is related to your not having a any content background and instead are trying to align your site to your background image. Which is not a very good idea in my opinion as you have an alignment issue with the content on the page but this alignment issue is related to your background image and not the PageLines content area.
I recommend you add a color to your content area in Color Control and use this to instead of a black are on your background image.