can't log into user account

[megatr0n]

There I have WEBSITE here that I am trying to fix for a friend. After i open an account on the site the activation email is sent out and account is activated however at no point am I prompted to enter password.
So i try an alernate approach from the backend; I set a password for a user in the database using phpAdmin. Now, when I try to log in the account using the credentials seen in the table, I get invalid email or password. The record does exist in the table. How can I correct this?

MOD EDIT: URLs removed; we don't need a link to a classifieds page, just the code that you're using.

[megatr0n]

i dont know which part of the code is the problem.

[halojoy]

If you should add a 'password' into a TABLE using phpMyAdmin
it is almost sure you can not add the plain password.

Let's say password is 'mypass'
What you shouls enter into database TABLE password field
is most often md5('mypass')
which in this case is: a029d0df84eb5549c641e04a9ef389e5

Sometimes sha1('mypass') is used
but 90% use [man]md5/man

<?php

$password = 'mypass';

echo md5($password);
echo '<br />';
echo $password;

?>