I'm one of the people who worked on the PS3 ToV English Translation and figured I should post my tools here, too:

https://github.com/AdmiralCurtiss/HyoutaTools/tree/master/Tales
https://github.com/AdmiralCurtiss/ToVPatcher

Note that you can find some non-Vesperia Tales related code there too, though I make no guarantees on the validity of that one. The Vesperia stuff should be all accurate though as we used it to create a working translation patch and online translation guide.