Remove the image size designator on the thumbnail image in the News Article page.

thumbnail_replace.js

// For each image of the feed
$j('.newsPreviewThumb').each(function() {													
	var src = $j(this).attr('src');
	// Find and replace the _thumb. so we have a large image to work with
    $j(this).attr('src', src.replace(/_thumb\.(png|jpg|jpeg|gif)$/, '.$1'));				
});