I tried half a dozen from the list you found, since you didn't bother to mention which of them were still alive, and https://github.com/AxelHaenschke/OpenRadioss was the only one that showed up, and it seems to have some updates from a couple of months ago. I've put a copy up at http://canonical.org/~kragen/sw/OpenRadioss.git. You should be able to clone it from there in about 30 seconds, but be aware it's 176 megs.