In your style section, add:
body {
margin-right: auto;
margin-left: auto;
}
Change:
#Layer1 {
	position:absolute;
	width:105%;
	height:115px;
	z-index:4;
	left: 0%;
	top: 0%;
	background-color: #CD8C95;
	background-image: url(images/pastels.png);
}
to:
#Layer1 {
    position: absolute;
    top: 0;
    margin-left: auto;
    margin-right: auto;
    left: 0;
    right: 0;
    width: 100%;
    text-align: center;
    height:115px;
    background-color: #CD8C95;
    background-image: url(images/pastels.png);
}
and change:
    <table id="table_05" width="51%" cellspacing="0" border="0" cellpadding="0">
to:
    <table id="table_05" width="100%" cellspacing="0" border="0" cellpadding="0">
Change any other occurence of 105% to 100%
Don't tell anyone that I helped. 
