List inside a list

This is what I have in my struts project. This is a list inside a list. I want to display this with displaytag.
I tried in severl mode, but without success. Could you help me?

<logic:notEmpty name="listSalesOrders">
<table class="standard">
<tr>
<td width="5%"> </td>
<td>
<table class="item" rules="all">
<logic:iterate id="listSalesOrder" name="listSalesOrders" indexId="indexSalesOrder">
<tr>
header
</tr>
<tr>
<td class="itemlist">bean:write name="listSalesOrder" property="number"/></td>
<td class="itemlist"><bean:write name="listSalesOrder" property="data"/></td>
<td class="itemlist"><bean:write name="listSalesOrder" property="purchaseOrder"/>td>
<td class="itemlist"><bean:write name="listSalesOrder" property="block"/></td>
<td class="itemlist"><bean:write name="listSalesOrder" property="status"/></td>
<td class="itemlist"><bean:write name="listSalesOrder" property="number"/></td>
</tr>
<tr>
Another heder
</tr>
<logic:iterate id="listSalesItem" name="listSalesOrder" property="listSalesItems">
<tr>
<td class="itemlist"><bean:write name="listSalesItem"property="item"/></td>
<td class="itemlist">bean:write name="listSalesItem" property="description"/></td>
<td class="itemlist">bean:write name="listSalesItem" property="quantity"/></td >
<td class="itemlist"><bean:write name="listSalesItem" property="umquantity"/></td>
<td class="itemlist"><bean:write name="listSalesItem" property="price"/></td>
<td class="itemlist"><bean:write name="listSalesItem" property="currency"/></td>
</tr>
</logic:iterate>
</logic:iterate>
</table>
</td>
</tr>
</table>
</logic:notEmpty>

Thanks
Annalisa