help Last Forum Post On Main Menu

[blotter]

hello im not sure if this is the right forum to post this but , im just playing with a script atm trying to learn. How the hell do i get the last forum post to show on the main menu . I once got it to say last forum post on the main menu But that's all it said. It did not show any forum post when i made a test account and replied to a topic??? www.cheekynitez.com

[something else]

$last =mysql_fetch_array(mysql_query("SELECT LAST(post) FROM forums"));
echo $last[0];