When I went through (I'm playing this Chapter again cos I made a dogs mess of it first time round), only the wooden chest was unlocked and I couldn't find the keys for the other chests either.
Maybe there's another something that needs doing for the other chests to be unlocked?
Wisdom? I guess I'm lacking in that area. <img src="/ubbthreads/images/graemlins/ohh.gif" alt="" />