I believe you have to record it yourself using a 3rd party program and then upload it. There's a discussion about it a few pages before the last page in the PSN general thread.
sorry, had to.
But really, you should use more hotaru. When I started using it I started it blindly, whiffing it a lot, but after a while you really learn when to do it, its range, and just HOW AWESOME IT FREAKING IS. It ups your game considerably, at least it did for me. I'm only starting to dabble in frame traps and feints, but I'm already loving it.
MAKE THE HOTARU LEAP.