The problem is that the main executable doesn't contain the skills table. (At least, it contains nothing that looks like a skills table.) I don't have the Japanese version of the game; I just got the executable from the patch.

I've had no response to my e-mail reply, but someone who has the Japanese version of the game could help out the community by searching the other game files for parts of the original skill table (link below). If you find it, please let me know which file it is in. Thanks.