Firstly i entered my admin normally and changed the URI, URL fields to point to the root of my site http://www.epothitaki.gr/
Then i moved my wp site from the /wp folder to the root using ftp.
Then i tried to login but it seems i' ve fallen to a redirection loop.
I tried everything from the login trouble codex (entering database, changing admin passwords, renaming plugins or theme, editing wp-login.php) without success
Please give me a hand!