Help extracting Heavenly Sword Textures

I’m trying to extract models from the game Heavenly Sword, but I have no idea how to get at the textures from the game. I’ve used quickbms to extract the models themselves, but apparently, the textures are locked away in .dat files. I’ve tried a few different dat viewers, but so far nothing has worked.

Does anyone know how to get at these textures?

Anyone?