.thrColFixHdr #header { 
	width: 1000px;
	height: 150px;
	background-image: url(../images/header_main.jpg);
	background-position: top left;
	background-repeat: no-repeat;	
	padding: 0;  /* this padding matches the left alignment of the elements in the divs that appear beneath it. If an image is used in the #header instead of text, you may want to remove the padding. */
}