Ok!
I've been trying to dabble into ETW modding for the first time to enable the US with the ESF editor program but the failier to save is a real set back, I'll work on it more today.
The editing goes fine until I start digging into xfering a starter city for the US to pop in and remove the 13 Colonies garrison there, then it refuses to save.
I'm using the editor linked on the OP of this thread http://www.twcenter.net/forums/showthread.php?t=242353
Does anyone know of a more stable version of it that won't get borked trying to save more indepth changes?