I've looked back at the hack tool and have a firmware iso file that should be a hacked version of the latest 970HD public beta firmware (0209). If you want it, I can post it.

Edit: Went ahead and tossed it on my server. Hacked firmware iso file can be installed using standard instructions from OPPO's site. If you need software to burn an ISO file to disc, DVD Decrypter is small and easy to use.