vblue
Well it still resides in copying / converting/ renaming files . So nothing is developed in this direction yet i guess
It would be nice if we had the paths to the music files (war , peace etc) so we can specify our own in game. A panel where you can replace the songs one by one or replace all . I'm playing in the background with soundtrack of the battlestar galactica but the music isn't synchronized with the game .(war ,peace - random music ) We could replace the ogg files but that means converting to ogg from the file format we have , and after replacing them we will 
i don't know about the first . I didn't played so many games to say yes or no but i don't think he is capable of such strategies . ii) You can increase your relation with him by a little you can't max out to 20 . You can increase your relationship up to max 2 points i think by giving him resources . But you can't hold a relation at let's say 15 only by giving him resources . You need to act as the expansion says diplomatic , making pacts , completing missions etc .