Setting up Oroborus to run as your GNOME window manager is simplicity itself. Assuming you have a working GNOME system, start up the GNOME control center and select the window manager control panel. Click the add button to add a new window manager and enter Oroborus in the name text box and oroborus (all lower case) in the command text box, then click ok. You should now be able to select Oroborus from the window manager list. See the documentation for GNOME for more information (www.gnome.org).
To use Oroborus on it's own you need to create a .xinitrc file in your home directory. The .xinitrc is a list of applications to start when you start X. A simple example might be:
oroborus &
fspanel &
xterm
This starts Oroborus, fspanel and a single xterm. The ampersand is required to run Oroborus and fspanel in the background, otherwise X would wait until Oroborus was exited before running fspanel. Xterm is started without an ampersand as this is the last line, this means that when we close the xterm we end our X session. See the documentation for X for more details (www.xfree86.org).