To configure Netjuke please point your web browser to:
http://<yourhost.tld>/netjuke/installer/installer.php

At the end of the installation you may recieve a blank
page or an error like the following:

-- snip --
Warning: Cannot modify header information - headers
already sent in
/var/www/localhost/htdocs/netjuke/installer/lib/inc-generate.php
on line 537
-- snip --

If this happens you should still be able to view the
source of the webpage and grab the PHP code
(between the <?php ?> tags) for the file inc-prefs.php.
Once you have copied the code paste it into the file
in your netjuke directory:

/var/www/localhost/htdocs/netjuke/etc/inc-prefs.php

You will also need to make this file writable by the webserver.