I have a template that is used to display all posts. It uses
query_posts with a set of
$args that I specify. The template uses
the_content to output the content of each post (text and images)
I want all images in the template output to be shown as 'medium' size on the template-generated page, no matter how the images were stored in the post. I don't want to change the content in the database, just the output that is generated with my custom template.