necesito ayuda con formulario de busqueda

[toplucho]

Código PHP:

 <form name="form2" method="post" action="buscador2.php"> 
 
<table width="591"  border="0" align="center" cellpadding="0" cellspacing="0"> 
  <tr> 
     <td colspan=4 height="37" width='591' background="imagenes/in14.jpg" class="Estilo1"><div align="left"><span class="Estilo1"><strong><img src="imagenes/n.gif" width="30" height="10">B&Uacute;SQUEDA AVANZADA</strong></span></div> </td> 
  </tr> 
  <tr bgcolor="#FFFFFF"> 
    <td><div align="left"> 
                      <select name="inmueble" class="tit3" style="background-color: #ffffff; border:1 solid #000000" > 
                      <option>Tipo de inmueble--></option> 
                      <option>Apartamento</option> 
                      <option>Atico</option> 
                      <option>Casa</option> 
                      <option>Chalet</option> 
                      <option>Estudio</option> 
                      <option>Garaje</option> 
                      <option>Nave</option> 
                      <option>Local</option> 
                      <option>Piso</option> 
                      <option>Trastero</option> 
                      <option>Vivienda playa</option> 
                                  </select> 
                    </div></td> 
    <td colspan="2"><div align="left"> 
                      <select name="operacion" class="tit3" style="background-color: #ffffff; border:1 solid #000000" > 
                      <option>Operacion--></option> 
                      <option>Alquiler</option> 
                      <option>Venta</option> 
                      </select> 
                    </div></td> 
  </tr> 
  <tr bgcolor="#FFFFFF"> 
    <td><div align="left" class="tit3"> Desde <? echo $SITE_moneda; ?> 
                <input type="text" name="precio"  size="8" value="0"> 
              </div></td> 
    <td><div align="left"> 
                      <select name="plazasgaraje" class="tit3" style="background-color: #ffffff; border:1 solid #000000" > 
                      <option>Garaje--></option> 
                      <option>Sí</option> 
                      <option>No</option> 
                      </select> 
                    </div></td> 
  </tr> 
  <tr bgcolor="#FFFFFF"> 
    <td colspan="4">&nbsp;</td> 
  </tr> 
  <tr bgcolor="#FFFFFF"> 
    <td colspan="4"> 
      <div align="center">  
                  <input type="image" value="Buscar" name="B12" src="imagenes/in16.jpg"  > 
    </div></td> 
  </tr> 
  <tr> 
    <td>&nbsp;</td> 
    <td>&nbsp;</td> 
    <td colspan="2">&nbsp;</td> 
  </tr> 
</table>