Help!

I have been working to make my blog a little more visually appealing, but it's not working too well. I went and made a really cute header, but now I can't get it in the right place. If anyone has any blog customizing tips, please share them with me. I want the maroon "Josh & Morgan.... the wedding countdown" in the box to vanish-- but I can't get it to go away!! All you experienced bloggers please help!!