[Plugin: Lazyest Gallery] LG tab in the 'Add an Image to post' popup

Hi LG, I am not getting the LG tab in the ‘Add an Image to post’ popup – as detailed in this post here: http://brimosoft.nl/2010/11/20/feature-preview-upload-tabs-in-lazyest-gallery-1-1-0/

Am running 3.1-RC3 and LG 1.0.22