IE 8 alignment issue

[Jesh]

I made this site http://vitalire.com/store and it looks perfect in chrome, firefox, and safari. but in IE8 the whole container is not centered on the page like it should be and the header is all jumbled up. :(

Here is the css for the container div.

.container {
padding: 0px;
margin-top: 0px;
margin-left: auto;
margin-right: auto;
width: 900px;
height: auto;
}

Please help!!!!