Hello Juan,

Sorry for late reply to this,
If I'm not getting wrong your meaning, you would like to put your Easyblog header to end of the blog post right?
If yes, you can change the code in your file JoomlaFolder\components\com_easyblog\themes\default\structure.php
LINE 10 until 18

<div id="eblog-wrapper" class="eblog-<?php echo $themeName;?> eblog-<?php echo $headingFont . $suffix . $bootstrap;?>">

	<?php echo $jsToolbar; ?>



	<?php echo $toolbar; ?>



	<?php echo $messages; ?>



	<?php echo $contents; ?>

</div>

Replace with

<div id="eblog-wrapper" class="eblog-<?php echo $themeName;?> eblog-<?php echo $headingFont . $suffix . $bootstrap;?>">

	<?php echo $jsToolbar; ?>



	<?php echo $messages; ?>



	<?php echo $contents; ?>



	<?php echo $toolbar; ?>

</div>

Hope this help.