Learn about CashCrusader script at the following places:
CashCrusader Demo
http://cashcrusadersoftware.com/demosite.php
CashCrusader Purchase & Special Deals
http://scripts-r-us.com/shop/index.php?cPath=1_46
CashCrusader Install, Update, Customize
http://scripts-r-us.com/shop/index.php?cPath=1_34