Open Gallery Images In Shutter..?

I just tested my plugin with Shutter. Works fine:
Cleaner Gallery WordPress Plugin

I’ve installed Shutter Reloaded, chosen Shutter as the effect in NextGen Gallery, and even installed the Cleaner plug in. But my images still open in new windows and not with the effect. Thickbox will work though. Where and how do I add this code too:

class=”shutterset_%GALLERY_NAME%”