Haven't heard of anyone finding the /h code for v6 yet.
But do you even need that? From your posts, it seems your Japanese is fluent enough to get past the language and technical barriers for the novels.
As for the win7 release, I' praying they'll use new sprites for it. The new look of the Shiranui and Raptor in TDA were just spectacular above all reasons. Just thinking how they'll improve those things even more just makes feel ecstatic. Any word whether it'll be all Ages? I'm starting to miss the pointy mountains after going through Chronicles 3.