TimThumb Won't Crop Properly

Im using the ‘Featured Posts’ plug-in, and it uses TimThumb. I tried doing <img src=<?php echo $featured_post_plugin_path ?>scripts/timthumb.php?src=<?php echo catch_that_image(); ?>&a=t&h=<?php echo $height_thumb ?>&w=<?php echo $width_thumb ?> /> http://pastebin.com/UTRxhWB6 like it says in http://www.binarymoon.co.uk/demo/timthumb-cropping/ but it’s still cropping in the center. here is ‘featured-post-with-thumbnail/scripts/timthumb.php’ http://d.pr/n0Do