Today, I am trying out FCKeditor on www4.cos.gmu.edu
Steps:
1. Download fckeditor drupal module and FCKeditor itself
Put both in ~/Downloads/drupal
2. cd /var/www/html/www4/sites/all/modules
3. tar xzf ~/Downloads/drupal/fckeditor-5.x-2.1.tar.gz
4. cd fckeditor
5. tar xzf ~/Downloads/drupal/FCKeditor_2.6.tar.gz
6. Administer -> Site building -> Modules and enable FCKeditor
7. Administer -> User management -> Access control and let Site Admin administer and use FCKeditor
8. Try it out with a news story - seems to work.