You don't have the fast-action version, since a such doesn't exist yet. (Look at the dates/times for the posts.)
As I mentioned - it's far from done, that's why it just fades fast all of a sudden, but I like your idea of going back to the beginning. The intro (in the first version, the one you heard) is definitely too long, so I'm going to see if I can gracefully cut that down somehow.
As for the 5.1 problem - I'm not sure what I can do. I did run it through a compressor in order for the action parts not to be too loud.