There is a (non critical) bug in the line #201 of "template.contact.php" file:
<input type="text" name="contact-name" id="contact-name" value="<?php echo $output['message'];?>" />
It must be
<input type="text" name="contact-name" id="contact-name" value="<?php echo $output['name'];?>" />
You can try to enter empty "Name" on http://www.gavick.com/demo/wordpress/si ... page_id=74 and see the result.