A few things - I found that the first bit of code (as mentioned above) has to be put under the second instance.
Secondly, I think you should point out that the "Thread Intro" thing is a link, literally underneath the admin menu - I thought by "under the menu" you meant it was an option in the menu.
Thirdly, does this require that the user does his/her own formatting? This is what I get (see attachment):
|