I want to force the images smaller to the width="128px" height="78px". They are being pulled in with Wordpress custom field.
HTML
<?php $description = get_post_meta($post->ID, "project-thumb", $single = true);
if($description !== '') { echo $description; } ?>
For working example: Rollover to the right of the screen, (need JS enabled)and notice the oversized image http://www.warface.co.uk/clients/warface.co.uk/the-london-police
Have you tried calling the image by its URL and running it through the free timthumb script?
Tutorial: http://c.hadcoleman.com/2008/06/adding-timthumb-to-your-wordpress-theme/