A couple of improvements to be on the fckeditor pages itself and/or the dialogs surrounding it:

• the save/cancel buttons are stuck together in the edit dialog, while they're separated by approx. 1em in the fck dialog (cfr image upload) - they should be separated everywhere
• the "source" button is half hidden : probably the label on the left can be narrower - if not, the window could be enlarged, or the button could be moved to a 2nd line
• the tabs in the fck popups seemed to be greyed out: this is confusing. Changing their colors would probably help.