_Arthur, leave this dude alone, when people read all that stuff you posted they may not want to help him.
Code:
if(strtolower($config['server']['encryptionType']) == 'md5')
$passwordency = 'md5';
if(strtolower($config['server']['encryptionType']) == 'sha1')
$passwordency = 'sha1';
That is straight from gesiors config-and-functions, what it means is that if your config.lua is set for sha1, you'll get sha1, his problem is he changed the rules in the middle of the game.
Now in his DB passwords are stored normally. However, the page is now looking for sha1.
Create a new account on the page, go to the DB copy and paste the password (will be exncrypted jumble letters and numbers) to your old account, now you can login.
Unfortunately _Arthurs grim asessment about not being able to change them back is right. Just start a new DB.
also, check out this thread. (everything is similar for 0.2, 0.3, 0.4 w/e)
http://otland.net/f479/nothing-full...niform-server-forgotten-server-0-3-6-a-77593/
This will help you set up encrypted DB.