find your Page.php file which will be the basis of your homepage.. unless you have changed it.

add this after the function init() like below..

class Page_Controller extends ContentController {
	function init() {
	 ....
	}

/** 
* Get the latest posts from the forum, with a limit. 
* 
* @param Int $param The number of posts to retrieve 
* @return Post Returns the latest posting or nothing on no posts. 
*/ 
	function LatestPosts($limit) {
		$posts = DataObject::get("Post", "ForumID != 0", "Created DESC", "", $limit);
		return $posts;
	}

}

thanks for that advice - it's solved that error message but unfortunately it doesn't return any posts.

I've found there are 2 LatestPost functions, one in Forum.php and one in Post.php (both in forum/code).

Post.php:
function LatestPost() {
$filter = "";
if($this->ParentID != 0) {
$parents = $this->getDescendantIDList();
$parents[] = $this->ID;
$filter = "AND ParentID IN (" . implode(",", $parents) . ")";
}
$posts = DataObject::get("Post", "TopicID = $this->TopicID $filter",
"Created DESC", "", 1);
if($posts) return $posts->First();
}

Forum.php
/**
* Get the latest posting of the forum
*
* @return Post Returns the latest posting or nothing on no posts.
* @todo This is causing some errors, temporarily added is_numeric.
*/
function LatestPost() {
if(is_numeric($this->ID)) {
$posts = DataObject::get("Post", "ForumID = $this->ID",
"Created DESC", "", 1);
if($posts)
return $posts->First();
}
}

As you can see, they are similar but different.

And now I have 2 LatestPosts functions, one also in Forum.php and one in mysite/code/page.php as per the code posted in previous messages

So it compiles and runs, but doesn't actually produce any code in the resulting html. HELP!

try taking the $limit variable out of the function and from your on page controller and set it manually to check it isn't that. Sorry, i didn't test it.