My Blog is Looking Ridiculous

As you can see the whole layout is messed up. I saw the design tools had been updated and some of them looked pretty cool. I thought it was time for a change so I started switching things up. A few minutes I realized the background wouldn't go away but everything else would change. I continued to try everything I could think of to try to get rid of it but nothing would work. Finally, after about 30 minutes of getting no where I tried to work with what I was left with, and gave up. Sooo... if you know how to get rid of this stupid shabbyblog background please help my tech-tarded self! Otherwise those few who read this are stuck looking it. Oh, and yes, I seriously contemplated just starting a new blog.