Mandar un mensaje a un usuario

[TKZeXe]

<select name="para">
<option selected disabled>-- Selecciona una usuario --</option>
<?
$result = mysql_query("SELECT * FROM ac_users ORDER BY username ASC");
while ($row = mysql_fetch_array($result)) {
$para = $row['username'];
?>
<option value= "<? echo $para ?>"><? echo $para; ?> </option>
<?
}
?>
</select>

<?
$result = mysql_query("SELECT * FROM ac_users ORDER BY username ASC");
while ($row = mysql_fetch_array($result)) {

?>
<option value= "<? echo $row['username']; ?>"><? echo $row['username']; ?> </option>
<?
}
?>

creo que lo complicaste más, aprimera vista.