Justo añadí eso en la portada de mi juego con foro phpbb 3, prueba con esto:
Código PHP:
<?php
$rpos=mysql_query("select posts.topic_id,posts.post_id,forums.forum_id,posts.post_subject,posts.post_time,forums.forum_name,users.username from posts left join forums on posts.forum_id=forums.forum_id left join users on posts.poster_id=users.user_id ORDER BY posts.post_time DESC LIMIT 10");
while ($rrpos=mysql_fetch_array($rpos)) {
?>
<a href="http://www.tusitio.com/foro/viewtopic.php?f=<?=$rrpos["forum_id"]?>&t=<?=$rrpos["topic_id"]?>&p=<?=$rrpos["post_id"]?>#p<?=$rrpos["post_id"]?>">
<?=$rrpos["post_subject"]?>
</a>
Por <?=$rrpos["username"]?> el
<?=date("d-m-Y H:i",$rrpos["post_time"])?>
<?php } ?>