This page is mainly a checklist for myself to know how I have to customize a freshly downloaded version of Backtrack 4.
Change keyboard layout
Use the following command to change the keyboard layout:
dpkg-reconfigure console-setup
Accept all default, except changing the origin to Belgium (if you want to use be-latin1).
Update all packages
apt-get update
apt-get upgrade
Configure SSH
You still have to generate your SSH keys
sshd-generate