Simple install procedure:

Download the siglar-x.x.x.i386.tar.gz file (the package file) and copy to an directory of your choise.
Open an terminal and `cd' to that directory.
The pachage file is a tar gzipped compressed file containing the Siglar application files in binary form and the installation shell script. You need to unpack them to run the installation script, to do this type:
$ tar xzvf siglar-x.x.x.i386.tar.gz
Enter in the new directory.
$ cd siglar-x.x.x.i386
Next run the installation script(become root if necessary):
$ ./install.sh
Now the Siglar program is installed in your system, to run it type:
$ siglar