For what it's worth, I think that at least by next week, it would be within the procedures established after the closing of AtomicGamer to reupload the mod and add the link back to the thread. There was a post in February asking about the mod's availability, and register's a few days ago, and I've found no evidence of intentional removal by The Guardian (yet another poster from days of yore who's no longer around). Mods, feel free to correct me, but I think this would fall within the closed-website-and-unreachable-author re-upload guidelines.
I also have a copy that I downloaded awhile back, but I'll let Ares take the lead on this one. I don't have the Alexander mod.