WordPress MU

I'm attempting to use the get_post_custom_values() function to retrieve a custom field for a post titled "news-image".

I want to use this variable as the src attribute for an <img />

Here is my code:

<?php
   $imgSrc = get_post_custom_values('news-image');
?>
<img src="<?php echo $imgSrc[0]?>" />

In the HTML the src continues to be null. You can view my page at http://metroiceblog.net

What am I doing wrong?

Scroll to the bottom of this post. It may give you some idea on how to change your above syntax so that it works.