To setup phpmyadmin on site upload phpmyadmin from any wamp installation found in www/app directory or you can download phpmyadmin from
http://www.phpmyadmin.net/home_page/downloads.php
After uploading create config.inc.php from config.sample.inc.php
and go to the directory
http://www.mohitsharma.net/phpmyadmin/ like this you will be prompted for username and password in this case
$cfg['Servers'][$i]['auth_type'] = 'cookie';
if you have to access directly you can add auth_type as
$cfg['Servers'][$i]['auth_type'] = 'config';
and add the information in configuration file