To my knowledge, the translations of the second edition of HSDS found on this forum are the only ones available. The Battle at Guanming Peak I'm guessing is the same one found at this forum. Some members requested a translation of this to be done and Meh, one of our members kindly translated it.
I seem to recall that there was a english translation of the vietnamese translation of HSDS but that was only upto chapters 17 or something and I think it was from the 1st edition. Dont know what happened to that site now though.
This book has been translated into other languages, just not english! If you like comics, they I suppose you can check out the comicsone adaptation of the novel though I don't know how accurate it is and how much of the novel is done.