Hello everyone, I am currently experiencing similar issues that other were with the plugin. More or less, I've copied the fullwidth-post.php file into the /wp-content/themes/gallery/thematic directory, but the drop down boxes still do not appear when creating posts. I've read that this plugin should be working fine in WP 3.2.1, so I wanted to verify I was entering the code correctly.
I have tried two types of headers.
<?php
/*
Template Name Posts: Snarfer
*/
?>
<?php
/**
* Template Name Posts: Full Width Posts
*
* This Full Width template removes the primary and secondary asides so that content
* can be displayed the entire width of the #content area.
*
*/
and just
<?php
/**
* Template Name Posts: Full Width Posts
*
* This Full Width template removes the primary and secondary asides so that content
* can be displayed the entire width of the #content area.
*
*/