This has been asked a few times, the Joomla fireboard MooTools slide is a custom MooTools code job. I can not make that a module becaase each target panel name could be different for every site. Plus you have to edit the fireboard code by hand to make it work anyway.
I have a great example with some free code at
www.ploplets.com you can look at to see how I did this.
Then from there you can view source on the forum home page here and see where I added stuff and how.
If this is for a client of yours I can give you a quote to do this on a per site basis.
Also note fireboard comes with a little jQuery installed, and it is a bad idea to mix _frame_works, like Mootools and jQuery on the same page, but I did it anyway.
Good Luck
brian