Sorry I need to bump this again

Does anyone know how to produce normal maps like the one Larian used? I have both Photoshop Nvidia DDS plugin (and thus normal map tools) and Pixplant 2, and BOTH generate normal maps the way I am used to. But Larian's normal maps are not just flipped they are in an hugely annoying channel order.
Basically, is there a way to generate normal maps with these channel orders from the get-go? Otherwise I am stumped. (And honestly, I have no idea how Larian did those textures, is that a Photoshop ability I am not aware of? You can't just re-arrange channels in photoshop without HUGE messing about.