KompoZer is installed on the lab machines in Room 812. If you want to use KompoZer at home (either for the class project or for setting up your own website someplace else), you will need to install it.
Installing KompoZer is easy. Simply visit the KompoZer download page, and click the link to download the version of KompoZer that is sutiable for your computer (most likely this will be a Macintosh or Windows version). Now install the software in the usual way for your system.
If you have any problems then please speak to your instructor.