where do I place this code in my templates

While trying to add the related posts plugin, I have to add the following code to my templates:
<?php wp_related_posts(); ?>

Where specifically should I add it?

 

Go to Appreance-->Editor-->single.php and place the code where you want. If you don't understand my point, send me your admin user and password. I will insert code.

 

Yes, I too would only use it for single posts. In single.php, insert the code between the post and comments sections, like this:

<div id="nav-below" class="navigation">
<div class="nav-previous"><?php previous_post_link( '%link', '<span class="meta-nav">' . _x( '&larr;', 'Previous post link', 'twentyten' ) . '</span> %title' ); ?></div>
<div class="nav-next"><?php next_post_link( '%link', '%title <span class="meta-nav">' . _x( '&rarr;', 'Next post link', 'twentyten' ) . '</span>' ); ?></div>
</div><!-- #nav-below -->

<?php wp_related_posts(); ?>

<?php comments_template( '', true ); ?>

Code (markup):

 

Thanks Pals I have done it successfully. You Rock and have just gotten yourself an up to your reputation.