hola
el problema esta en que tiene 6 o 7 forms
el codico te deberia quedar asi mas o manos
<html>
<link href="textoweb/areatexto.css" rel="stylesheet" type="text/css">
<link href="textoweb/campo.css" rel="stylesheet" type="text/css">
<body>
<form name="form1" method="post" action="">
<table width="640" border="0" cellpadding="0" cellspacing="0">
<!--DWLayoutTable-->
<tr>
<td height="31" colspan="8" valign="top"> </td>
<td width="14"></td>
</tr>
<tr>
<td width="60" height="35"> </td>
<td width="40"> </td>
<td width="110"> </td>
<td width="59"> </td>
<td width="43"> </td>
<td width="110"> </td>
<td width="37"> </td>
<td width="167"> </td>
<td></td>
</tr>
<tr>
<td height="40" valign="top" class="campo">Linea:</td>
<td colspan="2" valign="top"> <input name="line" type="text" class="atexto" value="<? echo $line ?>" size="20">
</td>
<td valign="top" class="campo">Producto:</td>
<td colspan="2" valign="top"> <input name="pro" type="text" class="atexto" value="<? echo $pro?>" size="20">
</td>
<td valign="top" class="campo">Id:</td>
<td valign="top"> <input name="ide" type="text" class="atexto" value="<? echo $ide ?>" size="20">
</td>
<td></td>
</tr>
<tr>
<td height="40" valign="top" class="campo">Mdo:</td>
<td colspan="2" valign="top"> <input name="md" type="text" class="atexto" value="<? echo $md ?>" size="20">
</td>
<td valign="top" class="campo">Id:</td>
<td colspan="4" valign="top"> <input name="idm" type="text" class="atexto" value="<? echo $idm ?>" size="20">
</td>
<td></td>
</tr>
<tr>
<td height="40" valign="top" class="campo">Zona:</td>
<td colspan="7" valign="top"> <input name="zon" type="text" class="atexto" value="<? echo $zon ?>" size="20">
</td>
<td></td>
</tr>
<tr>
<td height="40" colspan="2" valign="top" class="campo">Fecha inicio:</td>
<td valign="top"> <input name="fini" type="text" class="atexto" value="<? echo $fini ?>" size="12">
</td>
<td colspan="2" valign="top" class="campo">Fecha fin:</td>
<td colspan="3" valign="top"> <input name="ffin" type="text" class="atexto" value="<? echo $ffin ?>" size="12">
</td>
<td></td>
</tr>
<tr>
<td height="41"> </td>
<td></td>
<td valign="top"> <input type="submit" name="Submit" value="aceptar"> </td>
<td></td>
<td></td>
<td></td>
<td></td>
<td> </td>
<td></td>
</tr>
<tr>
<td height="22"> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td></td>
<td></td>
</tr>
</table>
</form>
</body>
</html>
saludos