The hellenization and expansion game boxes are beautifully done, but I have only found an older, not so nice version of the original game, does anyone have a link to a nice version of the original game box?

Not that I'm aware of, but you are welcome to use
http://broggs.org/~mcbeth/advciv.png

as a starting place. I have some more changes to make to make it work better, but basically, it is a modification of the CivProject map back to the old AdvCiv borders and population limits. I will be updating this image again tonight with bigger volcanos, fonts, and population markers. (and I can get you the source SVG if you want or higher resolution as needed).