Installation

[thebrightwork]

Sorry to ask such a n00b question but I need help installing/using this script. I am using the Good Idea wordpress theme (http://themes.goodlayers.com/goodidea/) and the thumbnails on the home page are not loading the retina versions because timthumb is resizing them. I would really like to just disable timthumb altogether but am having a hard time making that happen so in further searching I stumbled upon this script and it sounds like this can do what I need it to do... correct? If so, can you provide a little more clear instructions on how to install/implement in my current situation?

Thanks.

[LucScu]

put resize.php in your theme dir and add below code in functions.php
include( get_stylesheet_directory() . '/resize.php' );