This might be a stupid queston but I am curious. After playing Colonization I can't quite go back to looking at the water in my game of BTS I have going on. Does anyone know if its possible or know how to import the water from Colonization into BTS?
Thanks!

Sadly, this seems to be flat out impossible... The water relies on an upgraded engine.

And what about importing all of Civilization (except the water) into Colonization?

All the leaderhead and unit graphics from Col work in Civ 4. All the buildings that don't have gloss files also work as is (and could probably work once edited). It's mainly the water that doesn't work. Everything from Civ 4 works in Col.

Check out this mod by anhu:

http://forums.civfanatics.com/showthread.php?t=283638

It's not as good as adding the actual Colonization water to BTS but it's better than the standard water.