Thanks Beschizza, very helpful. I have another question though.
How do I add dimension “rules” to your code? You know, like when you pull a featured image from your post with this:
<?php
if ( function_exists("has_post_thumbnail") && has_post_thumbnail() ) { the_post_thumbnail(array(220,180), array("class" => "alignleft post_thumbnail")); } ?>
I want to use the Simple Fields plugin for thumbnail images.
Thanks.