Help! Password lost!

Only one thing left todo; change it back to the default one! The password is stored in

<joomla_root>/components/com_expose/expose/manager/amfphp/extra/passhash.inc.php

Just replace the contents of this file with following line, and the password will be reseted to 'manager':
Default Password Hash:

<?php $GLOBALS"passhash"? = "3e892e9edc898cf713ecd6ef06a116a7"; ?>