How to use Fingerprint reader in Linux

Today i tried using Fprint-demo in my Interpid lbex installed on my Toshiba satellite laptop .... synaptic made the installation easy ... sudo apt-get install fprint-demo thatz all . My fingerprint reader was that of Authentec ,without doing any additional configuration ,the program accessed my finger print reader easily .......Fingerprint scanners are becoming more commonplace, especially on