Cuando ejecuto este codigo e mssqlserver 
   
 $con = mssql_connect("localhost","t

sername","tu_passwo  rd") or die (mssql_error());
mssql_select_db("tu_base",$con) or die (mysql_error()); 
$sql = "SELECT nombre FROM clientes WHERE sexo='m' ORDER BY edad";
$result = mssql_query($sql) or die (mssql_error()); 
while($row = mssql_fetch_array($result)){
    echo $row['nombre']."<br />";
}
$con = mssql_connect("localhost","t

sername","tu_passwo  rd") or die (mssql_error());
mssql_select_db("tu_base",$con) or die (mssql_error());
$_pagi_sql = "SELECT * FROM clientes WHERE sexo='m' ORDER BY edad";
$_pagi_cuantos = 10; 
include("paginator.inc.php"); 
while($row = mssql_fetch_array($_pagi_result)){
    echo $row['nombre']."<br />";
} 
echo"<p>".$_pagi_navegacion."</p>";   
ME  muestra el siguiente mensaje requiero de configurar algo  
Warning: main(./class.paginado.php) [function.main]: failed to open stream:  
Warning: main() [function.include]: Failed opening './class.paginado.php' for inclusion (include_path='.;C:\php5\pear')