Hey Casper, thanks for reaching out & please accept my apologies for the late, late reply (I’m afraid this summer holidays took its toll — sorry)!
As for your problem — no, I’m sorry to say that this is not possible, since our plugin is only meant to show up related posts on blogposts and not on pages.
But you can try one thing out (although I cannot promise that it’ll work!) — Go to your WordPress’s Dashboard under the tab ‘Appearance’-‘Editor’ and choose your theme in the upper right corner (if I’m not mistaken, usually it’s called “Twenty Eleven”). Now click on the ‘content.php’ file, which you can find on the right hand side of your screen. After that, search for the following code in the code editor:
<div class="entry-content">
<?php the_content( __( 'Continue reading <span class="meta-nav">→</span>', 'twentyeleven' ) ); ?>
<?php wp_link_pages( array( 'before' => '<div class="page-link"><span>' . __( 'Pages:', 'twentyeleven' ) . '</span>', 'after' => '</div>' ) ); ?>
</div><!-- .entry-content -->
<?php endif; ?>
Now that you have found this, just add the following code line at the end of it:
<?php wp_related_posts()?>
So, to sum it up, the whole thing should look like this:
<div class="entry-content">
<?php the_content( __( 'Continue reading <span class="meta-nav">→</span>', 'twentyeleven' ) ); ?>
<?php wp_link_pages( array( 'before' => '<div class="page-link"><span>' . __( 'Pages:', 'twentyeleven' ) . '</span>', 'after' => '</div>' ) ); ?>
</div><!-- .entry-content -->
<?php endif; ?>
<?php wp_related_posts()?>
Remember to click on the ‘Update File’ button when you’re finished. Visit your blog, refresh the whole page and you should be able to see those related posts over there.
Did it work? Need any further assistance or do you have any other questions? Let me know — I’ll gladly help!
Take care & have a nice day!
Best,
Silvo