Scripts: I think it might be SCS II, yep. I'm not sure if DavidW is around, but if/when he is, let him modify the files - he's the script genius.
I'll ask him when I get the chance.
Different dialogue file - that's a scrambled install, happens sometimes when you reinstall and reload an old save game, or run two setup-mod's at once, or something similar. If it bothers you and is getting worse, reinstall, if not, feel free to ignore it. (It's commond for all mods)
And thank you for your reports!