[Scanu]

Ok now i understand what tou're doing (you're making a template for it), so try this code

PHP Code:

        $replace = '<!-- message -->
        <div id="post_message_$post[postid]">
            $ad_location[ad_showthread_firstpost_start]
            $post[message]
        </div>
        <!-- / message -->';
        $vbulletin->templatecache['postbit'] = str_replace($replace,fetch_template('post_bubble_threads'),$vbulletin->templatecache['postbit']);
        $vbulletin->templatecache['postbit_legacy'] = str_replace($replace,fetch_template('post_bubble_threads'),$vbulletin->templatecache['postbit_legacy']); 


And if it isn't working you can try this as replace variable

$replace = '<!-- message -->
<div id=\"post_message_$post[postid]\">
$ad_location[ad_showthread_firstpost_start]
$post[message]
</div>
<!-- / message -->';