Note: To make sure that
the file you've downloaded is not corrupted, you also need to
download the relevant .md5 file and then test it with the
command e.g.
$ md5sum -c luckyBackup-0.X.X.tar.gz.md5
You can also have a look at
the sourceforge download page
as well as kde-apps.org for a bigger variety of distro versions
Instructions can be found at the install section.