#leftRightColumn {
  width: 662px;
x  padding-top: 28px;
  float: right;
  display: inline;
}

#mainColumn {
  float: left;
  display: inline;
  width: 444px;
  padding-right: 30px;
}

#rightColumn {
  float: right;
  display: inline;
  width: 188px;
}