If you have a question about how to do something, please open an issue on stackoverflow; please tag the question with "backdraft".
If you've found a bug, please open an issue in the Backdraft repository. Your chances of getting attention are much higher if you provide a reproducible test case.
You may also request an enhancement by opening an issue. Again, your chances of getting that enhancement incorporated into future releases are much higher if you provide a pull request with a test.
Backdraft is the output of several years of commercial, for-profit work at Altoviso, and Altoviso offers commercial support for Backdraft at all levels--anything from answering a usage question to building a complete application. You may contact Altoviso via email at email@example.com. Direct contact information is available at http://altoviso.com/contact.html.