Hi I have a problem with my PowerBook

It boots to BSD (Command Line Interface) instead of OS X (GUI Aqua)

This Video shows more

http://uk.youtube.com/watch?v=_m2oKfxF3fI

Please note that the screen on the PowerBook is broke so I can only use it connected to an external monitor

 

When I try to reinstall the system, the picture does not get pushed across to the external monitor meaning I can not see what I am doing and thus can not reinstall

Thanks in advance for any help or sugestions