I have installed the phpmyadmin(version:3.0.0) and the error message displays:
"The configuration file now needs a secret passphrase (blowfish_secret). "


Problem solution you can find here:
http://archives.neohapsis.com/archives/mysql/2004-q3/1071.html
Here in config.inc.php just modify the following configuration:
/*
* This is needed for cookie based authentication to encrypt password in
* cookie
*/
$cfg [ ' blowfish_secret ' ] = ' ' ; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */
as
/*
* This is needed for cookie based authentication to encrypt password in
* cookie
*/
$cfg [ ' blowfish_secret ' ] = ' holla ' ; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */
Review the phpmyadmin again, then it works.