[B00MER]

<TABLE border=0 cellPadding=0 cellSpacing=0>  
<form method="get" action="search.php" name=productsearchform>
<tr> 
 <td width=20></td>
 <td class="TopLabel">{$lng.lbl_search}:</td>
 <td valign="middle"> 
  <input type="text" name="substring" size="16" value="{$smarty.get.substring|escape}">
 </td>
 <td valign="middle"> 
  {include file="buttons/search_head.tpl"}
 </td>
 <td width=20></td>
 <td><u>{$lng.lbl_advanced_search}</u></td>
</tr>
</form>
</TABLE>

Give this a try for your search.tpl code in skin1/customer/