Tusker is a simple task manager created in CodeIgniter 3.x
First of all you need a fresh CodeIgniter. Once you have it, copy/paste the application directory, .htaccess and the assets directory. In order to install Tusker you need to import tusker.sql into your database, and change the database credentials accordingly. Also take a look at the config.php file inside application/config directory and make any changes you need.
In order to login, you need to use:
Username: administrator
Password: password