2sided Shader - Strumpy Shader Editor

Hey guys, im trying 2 make a transparent 2 sided shader to use on some leaves using the Strumpy Shader Editor. Now the results look weird. The shadows cast the geometry not the actual alpha texture.
Heres a screen of the editor and the settings:
http://img268.imageshack.us/img268/9224/shadere.jpg

Any help would be appreciated

Shadows only work with alpha cutoff-type shaders. I’m not quite sure how to do this with strumpy, but there should be a setting for ‘transparent-cutout’.