...unfortunately, the odds of this work every seeing the light of day is slim to none. We gave the project's Lead Programmer, LOst, a week to provide us with a DRM free build of S2HD.
We've heard as much from him as you have, so it's safe to assume that's not going to happen. Given his complete lack of communication and cooperation, it falls upon to LOst to assume full responsibility for his actions as, up until the demo was released, the project's leadership was unaware of both the DRM and the now infamous DirectInput bug.