Studio Sokodei cannot legally sell Re-Death, since it would be infringing upon copyrights. That being said, you could probably find a badly-seeded torrent online of the original, but I've yet to find the Redux version of it.
I saw it for the first time in 06, and then I sadly missed it in 07 due to the fact that my high school graduation was the night it played (and I have to miss it again this year due to the same reason, only with it being my friend who is like a sister who is graduating instead)