Que fallo veis en este código

[jdelrioj]

Código PHP:

  <?php  
$ParamIdVeh=$row[5];          
        $sentencia="SELECT Vehiculo, Orden, Articulo, Descripcion, Cantidad, Imagenweb1, Imagenweb2, Instruccion  
        FROM cr_guiaproductos  
        WHERE Vehiculo=$ParamIdVeh; "; 
        $resultado2= mysql_query($sentencia); 
        $bandera = 0; //Para comprobar si existen articulos para ese vehiculo 
         
        while ($registro=mysql_fetch_array($resultado2, MYSQL_NUM)) 
            { 
                 
                 
                if($registro[1]!=$bandera) //Aqui lo comprobamos si existen 
                    { 
                        $bandera=$registro[1];  
                    ?> 
                <table width="95%"> 
                    <tr bgcolor="#CCCCCC"> 
                        <td width="25%"> 
                                Opci&oacute;n <?php echo $bandera; ?> 
                        </td> 
                        <td width="25%"> 
                                Art&iacute;culo 
                        </td> 
                        <td width="25%"> 
                                Descripci&oacute;n 
                        </td> 
                        <td width="20%"> 
                                Cantidad 
                        </td> 
                  </tr> 
                  </table> 
                        <?php  
                       $mas=0; } // el valor de mas condiciona si ponemos la imagen mas o no     
                     
                if($mas==0) // Si mas vale 0 no ponemos el mas pero si entra ponemos el mas en 1 
                    { 
                    ?> 
                    <table width="95%"> 
                    <tr> 
                          <td width="25%"> 
                            <img src="http://www.forosdelweb.com/f18/images/productos/MINI/<?php echo $registro[5];?>" border="0">  
                        </td> 
                        <td width="25%" align="left"> 
                                 
                                    <img src="images/pdf_button.png" border="0">  <?php echo $registro[2];?> 
                              
                         </td> 
                          
                        <td width="25%"> 
                                <?php echo $registro[3];?> 
                        </td> 
                        <td width="20%" align="left"> 
                                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<?php echo $registro[4];?> 
                        </td> 
                             
                  </tr> 
                        </table> 
                        <?php   
                        $mas=1;  
                    } 
 
                else // Aqui mas es diferente de 0 osea 1 y ponemos la imagen 
                    {  
                        ?> 
                        <table width="95%"> 
                        <tr> 
                        <td width="25%"> 
                    <img src="guia/images/mas_azul.jpg"> 
                    <img src="http://www.pagina.com/images/productos/MINI/<?php echo $registro[5];?>" border="0"> </td> 
                    <td width="25%" align="left"> 
                     
                                    <img src="images/pdf_button.png" border="0"> <?php echo $registro[2];?> 
                 
                    </td> 
                    <td width="25%"> 
                    <?php echo $registro[3];?> 
                    </td> 
                    <td width="20%" align="left"> 
                    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<?php echo $registro[4]; 
                    ?> </td> 
                    </tr> 
                    </table> 
                    <?php  
                    $mas=1; 
                    } 
                } 
                ?>