Post edited for better clarification:
I have audition mode, and I'm interesting in playtesting. How do I become a tester? Any help on this would be appreciated.
Edited: I have an XNA account, and it's linked to my gamertag (GooseNation01). I also have Magma V2. I have the free time, so that's not an issue. What's the next step to becoming a tester?