Bibledit can be installed from a package.
Connect to the installation media.
Start the Synaptic Package Manager through menu System / Administration.
In the Package Manager, install package bibledit.
That should be all what's needed.
In case that the version of bibledit that comes with your version of Ubuntu is not the one you prefer, or not new enough, you can install a version from the CrossWire repository. To do that, browse to https://launchpad.net/~pkgcrosswire/+archive/ppa and follow the instructions there. Support on installing packages is not given by the Bibledit crew. Help can be found on http://help.ubuntu.com, or http://ubuntuforums.org, or http://help.launchpad.net.