I thought I would flag some suggestions:
- When you specifiy a css for the text area, the Class dropdown is automatically populated with the class names.
- I'm finding the editor quite slow to load with the full toolbar setup, even opening the forums entry form here is quite slow (using a Broadband cononection), I wouldn't like to try it on a modem.
- The links dialog isn't very helpful to a novice. Perhaps you should have a dropdown that you can specify the type of link (mailto, http etc) and the user would just have to enter the email address or www address. See this editor http://www.richtexteditor.org/demo/
- Related to above, provide a facility for some to create a relative link (from the site root) to another page on the web site. This would allow the user to navigate through the website and select the page they want to link to.