Hey @dealfonso!
Go to your WordPress’s Dashboard in (y)our plugin settings, scroll to the bottom, tick the box next to “Auto Insert Related Posts”, and copy the following code:
<?php zemanta_related_posts()?>
Now click on the ‘Appearance’ tab (on the right side of your WordPress’s Dashboard) and go under the tab ‘Editor’. Find the post.php file and paste the above mentioned code where you’d like your related post section to show up. ??
Let me know how it goes or if you need any additional assistance — I’ll gladly help! (Also, send me the link to your blog as well, so we’ll know what we’re dealing with.)
Take care & have a nice day!
Best,
Silvo