Question about the points

I got a question about the points system...

Well, you know how when you move a post from a forum that counts posts towards user post counts to a forum that doesn't, it deducts the post from their postcount? How could I get it to deduct the points they got for the post as well?

I'm pretty sure it would go somewhere in postings.php here:

PHP Code:

// Update Post Count if we move from a counting forum to a non counting or vice-versa..
    if (($method == 'move' OR $method == 'movered') AND (($foruminfo['countposts'] AND !$destforuminfo['countposts']) OR (!$foruminfo['countposts'] AND $destforuminfo['countposts'])))
    {
        $posts = $DB_site->query("
            SELECT userid
            FROM " . TABLE_PREFIX . "post
            WHERE threadid = $threadinfo[threadid] AND
                userid <> 0
        ");
        $userbyuserid = array();
        while ($post = $DB_site->fetch_array($posts))
        {
            if (!isset($userbyuserid["$post[userid]"]))
            {
                $userbyuserid["$post[userid]"] = 1;
            }
            else
            {
                $userbyuserid["$post[userid]"]++;
            }
        }

        if (!empty($userbyuserid))
        {
            $userbypostcount = array();
            foreach ($userbyuserid AS $postuserid => $postcount)
            {
                $alluserids .= ",$postuserid";
                $userbypostcount["$postcount"] .= ",$postuserid";
            }
            foreach($userbypostcount AS $postcount => $userids)
            {
                $casesql .= " WHEN userid IN (0$userids) THEN $postcount";
            }

            $operator = iif($destforuminfo['countposts'], '+', '-');

            $DB_site->query("
                UPDATE " . TABLE_PREFIX . "user
                SET posts = posts $operator
                CASE
                    $casesql
                    ELSE 0
                END
                WHERE userid IN (0$alluserids)
            ");
        }
    } 


But, I don't know much PHP so I'm not sure what to change or add...

If anyone can help out with this, I would be grateful...thanks.