How to integrate Timthumb with wordpress

[RT]

This one:

<div class="post_thumb">
<a title="<?php the_title(); ?>" href="<?php the_permalink(); ?>"><img src="http://yourdomain.com/path/to/timthumb.php?src=<?php echo catch_that_image() ?>&w=100&h=100&zc=1" title="<?php the_title(); ?>" alt="<?php the_title(); ?>" /></a>
</div>

Don't forget to change the path of timthumb in that code - http://yourdomain.com/path/to/timthumb.php -