The Structure theme is suddenly giving me trouble

My site is emeraldedgeproductions.com and just today I had the site go down and now thats it’s back. On the Firefox browser the site looks right, but on Opera, Explorer, and on my Iphone the site looks wrong. I have three ‘image’ fields out of no where and my header is not what I have uploaded to the theme. Please help me guys, I have a few big investors probably looking at the site soon and well, this isn’t what I’d prefer them see. Thanks.