I rewrite thread_new_posts by creating a thread_new_posts_new and re-editing it as I wish.
However how do I use thread_new_posts_new when post in thread?
Because I want to embed the thread to Drupal in the form of an iframe. (Drupal and Forum in the same domain). So if I edit thread_new_posts, it affects the Forum. I just want to use thread_new_posts_new for Drupal.