Average review under product title

Hello,
Is it possible to place average review under product title ?
On ImpleCode I saw that I have to place the code:
<?php echo ic_reviews_average() ?>
inside a template file.

Which template file ?
IpmleCode’s “product-name.php” file?
But where exactly ?
I’m not a developer, I have tried to place it inside :
<header class=”entry-header product-page-header”>
<?php do_action( ‘single_product_header’, $post, $single_names ); ?>
</header>
Modifing it to :
<header class=”entry-header product-page-header”>
<?php do_action( ‘single_product_header’, $post, $single_names ); ?><?php echo ic_reviews_average() ?>
</header>

But it didn’t worked.
Any help with that?

Many thanks
Herc

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