Xbox 360 streaming x264 help

I have been trying to get tversity on my xbox 360 to work for a few hours. I have some x264 files that play and I have video but no sound. How do I get the sound to work? I don’t have pro version just the regular version. I am running Windows 7. I deleted all of my codecs hoping that maybe reinstalling a new codec pack would help. But now I’m just stuck. Also, even though the video is playing and the quality is great, it has a slight stutter every 2 minutes or so. What do I need to do to make the Audio work for streaming to my Xbox 360? Thanks