Just to clarify, these photos were uploaded directly into the user's own Facebook albums. They viewed the photos outside of the scope of our application, along with all their other Facebook photos. It was these photos that were deleted when our application was banned.
Even if we had backups, it wouldn't mean much. Facebook revoked our OAuth access. So we're unable to re-upload the photos for our users.
This is exactly why I'm contributing to the Locker Project. I personally have data on tribe.net I'm concerned about losing.
I could write a scraper myself, but I know a ton of people who feel the same way. These are people who aren't programmers but would personal copies of the digital snowflakes they've created on that site. It's far more useful to build a Locker connector that anyone can use to sync their contacts, messages, photos, etc.
We hope to help solve at least the backup component of this at: http://lockerproject.org/. This just helps reinforce, in our eyes, that we need to push hard to get this in front of people as soon as possible.