The current version of LUCI is 0.2.2.
You can download LUCI here:
Eventually, become root if you want to install it outside of you home directory.
gzip -cd luci-0.2.2.tar.gz | tar xvf -
This install program will ask you where you want to install LUCI and finish the job.
NOTE: The installation script will always try to install the description files in /etc/luci. However, this will fail unless you are logged in as root while doing the installation. In this case, you will need to start LUCI using the "-d" option to specify where the configuration files are (which will be the "examples" directory within the directory you are installing LUCI from, but it can be moved anywhere you desire). For example, if the tarball has been opened in your login directory, then you would start LUCI as follows:
See the LUCI documentation for more about how to use options of the program.
luci -d ~/luci-0.2.2/examples