I am looking for the regular images that get uploaded from the media uploader. I want to put in an image resize script instead of using WordPress to manage the images. The main reason being is that I don't want 3 images created every time I upload an image. I want just the size that is chosen from the media uploader. I did some reading on this site and figured out how to get the sizes. Now I need to know if there is a hook that can grab the image? I have only ever worked with the thumbnail. Where are the regular images called from that get inserted into the body of the post?
Why not set your own image sizes from within your theme in
add_image_size( 'some-image-size-name', 500, 300 );
Then you can call that size you want from your template.
<?php echo get_the_post_thumbnail( $post_id, $size, $attr ); ?>
Add image size: http://codex.wordpress.org/Function_Reference/add_image_size
get post thumbnail: http://codex.wordpress.org/Function_Reference/get_the_post_thumbnail