So we can use Subversion for storing themes and rapid update of many client websites when WordPress updates, we use the alternate location for the content folder, as described here:
http://codex.wordpress.org/Editing_wp-config.php#Moving_wp-content
The problem is line 28 in gravityforms.php:
require_once (preg_replace("/wp-content.*/","wp-includes/pluggable.php",__FILE__));
In our case, we standardize by setting up our folder structure like this:
wp-config.php
.htaccess
wordpress/
wp-includes/
(etc...)
content/
plugins/
themes/
uploads/
To get it to work quickly, I modified line 28 as follows:
require_once (preg_replace("/content.*/","wordpress/wp-includes/pluggable.php",__FILE__));
Better, though, would be to use the WordPress constants instead, like WP_CONTENT_URL. Any chance you can take the time to provide a version of this line that's independent of where the content folder is and where WordPress is installed?
Blue skies,
-Aaron
P.S. Just below, where it says "Tags", it's "separated" not "seperated". :)