Q: If you reset your iPod from a Backup save, your save files in-game will not return. Also if you have bought money or additional levels in-game; they are also deleted. Can it be fixed?

If you reset your iPod touch from a Backup save you can get all apps you paid for (or got for free) back.

Though save files in-game will not return, and apparently if you have bought money or additional levels in-game; they are also deleted.

   Can it be fixed or brought back?

The games I am talking about specifically is "The Impossible Game" where I have bought the full game and the level pack and "Solomon's Boneyard" where I, sadly enough, bought additional Gold. Only the apps are left.

I have an iPod touch 4th gen, version 5.1