How to show 10 topic on Homepage New Posts

How to show 10 topic on Homepage New Posts. for all users. Pls help me.

nomanbd,

$sql = mysql_query("select * from (SELECT * FROM `forum` where `type`='m' order by `id` desc) as `msg` group by `refid` order by `id` desc limit 10");  
echo '<pre>';
while($row = mysql_fetch_assoc($sql)) {
print_r($row);    
}