Can a WordPress administrator see other users’ passwords?

No, passwords are stored as a hash in the database. This hash is very difficult to reverse. Here is more information how WP encrypts passwords: http://codex.wordpress.org/Function_Reference/wp_hash_password

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)