$req = mysql_query("SELECT `id`, `name`, `datereg` FROM `users` ORDER BY `datereg` DESC LIMIT 1");
while ($arr = mysql_fetch_array($req))
{
echo"К нам присоединился: <a href='str/anketa.php?user=" . $arr['id'] . "'><font color='red'>$arr[name]</font></a>";
}