Joomla Free extensions

I'm having trouble posts.
All they automatically come out and go straight to Facebook.
Now if I want to post the news here two days for example, to save and publish it here two days in Joomla, but on facebook he posts on time, ie, not wait the 2 days that I requested.

And the fact is stranger still because post go all out with "00000000", see the print.

Hello
Can you send me joomla administrator? So we can check and help you
Best regards
Bach Pham

Hello
We have checked and no problem. Please check it again. i do not understand why you have post article and date post is 00-00-00
Best regards
Bach Pham

I did some more tests and is giving the same problem.
How could you do without these appear invalid dates, something like 00000-0000
Am I doing something wrong?
Would not only mark "check" on the fanpage to publish what I write the text and just save?
But do it but the same problem occurs.
Is there another way to make a turtorial or because I'm following properly.

Helo
Find and open file: plugins/system/jo_k2_autopost_facebook/ko_k2_autopost_facebook.php
Go to line 181, 182 and changed
$create = JRequest::getVar('created');
$publish_up = JRequest::getVar('publish_up');
To
$create = $article->created;
$publish_up = $article->publish_up;
And please check it. Or you can set account your sending is super admin? So we can help you changed
Best regards
Bach Pham

Now is ok, but it is a difference of 3 hours of posting the K2 for Joomla and Jo K2 Auto Facebook.
See the example:
Date created K2 in Iten: 18/07/2014 00:51:59
Date published in Iten K2: 18/07/2014 02:51:59
Date created in Jo K2 Auto Facebook: 2014-07-18 03:51:59, +3
Date published in Jo K2 Auto Facebook: 2014-07-18 05:51:59, +3

Could see the backend again?