#leftnav {

float:left; 
width:166px;
margin-right:0px;
margin-left:0px;
padding-left:18px;
margin-top:0px;
background: #FFFFFF;

}

#isgpage {

 
width:800px;
margin-right:0px;
margin-left:0px;
padding-left:18px;
margin-top:0px;
background: #EEEEEE;

}