dtgreene: I seem to be able to post there, but I don't have anything to add to the conversation.
By the way, does the game use .bra files like Elminage Gothic and the original Agarest? I have almost written my own implementation of the bra unpacker in Python and it's at the point where I actually can uncompress a file. (Maybe that's something to post there.)
Sarisio: Yes it does, however all files have mostly numerical only names, and there are many of them. If you will find which bra file has monster stats, item tables and similar stuff for Agarest 2 that would definitely help :) I hope they aren't spread through all the myriad of files.
One suggestion is to run grep on the resulting files. Just grep for the name of some enemy or item and see what files match.
Note that in Elminage Gothic, moster stats were spread out in 3 files.