How to integrate into joomla 1.5?

I've started up a new FCKEditor forum, below LaTeX Equation Editor.

http://www.codecogs.com/pages/forums/forum_view.php?f=37

I think this is the best way to start the integration into Joomla and Drupel.

Update: First example integration with FCKEditor is shown in the other forum. Remember you can not watch any forum you like to see progress on work being done.