.promo_left
{
    width: 185px;
    height:356px;
    float: left;
    border:solid 0px #AAA;
}

.promo_center
{
    float: left;
    border:solid 0px #AAA;
    width:701px;
    height:356px;
    margin-left:5px;
    _margin-left:0px; /*for delicious IE6*/
}

.promo_bottom_left
{
    float: left;
    border:solid 0px #AAA;
    width:185px;
    height:156px;
}

.promo_bottom
{
    float: left;
    border:solid 0px #AAA;
    width:170px;
    height:156px;
    margin-left:5px;
    _margin-left:0px;
}