Change the database connections in adesGBook.php in \AdesGuestbook\Connections\ folder

$hostname_adesGBook = "localhost"; This is your hostname, most of the time it is localhost if different change it.
$database_adesGBook = "adesbook"; This is database name.
$username_adesGBook = "root"; Your username to login to your mySql database
$password_adesGBook = "dfjdlfj"; Your password to login to your mySql database

Change the username and password for admin login page in connect.php in \AdesGuestbook\admin\ folder

Default username and password is admin for username and admin for password. This is a login information for you Administrator Area, here you can manage your guestbook records; delete and modify.

Create a table named adesbook with the following code:

CREATE TABLE adesbook ( ID int(8) NOT NULL auto_increment,
firstName varchar(30) NOT NULL default '',
lastName varchar(30) NOT NULL default '',
country varchar(30) NOT NULL default '',
email varchar(30) NOT NULL default '',
website varchar(200) default NULL,
comment text NOT NULL,
date varchar(100) NOT NULL default '',
marker date default '0000-00-00',
time timestamp(14) NOT NULL,
PRIMARY KEY (ID)
) TYPE=MyISAM;

Note: phpMyAdmin is a very useful tool to manage your databases, you can download it free online at http://www.phpmyadmin.net