<table width="100%" height="94" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <th style="background-image: url('XX.png'); background-size: 100%;" scope="col"><h6>&nbsp;</h6>
      <h6 class="style19">data1</h6>
    <h6 class="style19">data2</h6></th>
  </tr>
</table>
http://jsfiddle.net/K3mRP/

Yanlış anlamadıysam bu işinizi görecektir