Tumblr posting problem

[dedurus]

Trying to make the following code to work, and no success so far.
I have the following in Tumblr_Social.php class:

public function tumblr_post()
{

    $blog = eden('tumblr')->debug(true)->blog($tumblr_config['tumblr_key'], $tumblr_config['tumblr_secret'], $tumblr_config['tumblr_access_token'], $tumblr_config['tumblr_secret_token']);
    $post = $blog->postText($tumblr_config['tumblr_url'], 'Poraka', 'Naslov');

    return $post;

}

and then in tumblr_post.php:

<?php
include('Tumblr_Social.php');

 $test = new Tumblr_Social();
 $post = $test->tumblr_post();
?>

I got printed all OAuth params on debug screen, and event log is empty.
I even tried to post with static OAuth params (I've already obtained consumer access/secret and access/secret tokens), and no result as well.
I'm using Eden one file. Is this the problem?
Where did I go wrong?