It worked for me.
Did you just try and open Game.rxproj from within WinRAR (or whatever unzip program you use)? Or did you extract the whole thing first?
When I tried to open it from within WinRAR I got an "unable to load Actor data" message. When I extracted everything and double-clicked on the extracted file, it worked fine. Don't try and open it from within your unzipping utility.
If you try it again and it doesn't work, don't come back here and say "it doesn't work". Tell us what IS happening - an error message, how far it gets before it fails. We're not mindreaders