If you have ever forgotten your WordPress password, there is a work-a-round, change it. The WordPress password uses an MD5 version of the password that may have been selected. Generate a new MD5 password using the tool below. Replace the MD5 password in WordPress with the one generated. This, however, is only valid for WordPress installations up to version 2.3.3. WordPress 2.5 now uses the phpass library to stretch and salt all passwords stored.

• Select table “wp_users” and replace the password
• Below, enter the password and it will create a MD5 hash key
• via SQL Query

UPDATE wp_users SET user_pass="5f4dcc3b5aa765d61d8327deb882cf99"
WHERE ID = 1

<!--?php
if(!isset($_POST["convertme"]))$convertme="password";
else $convertme=$_POST["convertme"];
echo 'The MD5 Hash of <i-->'.$convertme.' is : '.md5($convertme).'
The SHA Hash of <i>'.$convertme.'</i> is : '.sha1($convertme).'
The CRC32 Hash of <i>'.$convertme.'</i> is : '.crc32($convertme).'

<form action="'.$full_self.'" method="post">
<div>
<label for="convertme">String</label> : <input type="text" name="convertme" id="convertme" size="50" value="'.$convertme.'">
<input type="submit" value="Submit"></div>
</form>';
?&gt;

Support:
http://www.patheticcockroach.com/mpam4/index.php?p=43
http://www.thecredence.com/forgot-wordpress-admin-password-reset-using-mysql-and-phpmyadmin/
http://coding.phpground.net/modules.php?name=PHP_Manual&page=function.crc32.html