why i can't open the map whit GE?

hallo. i love this serie of maps, but i have a question: i wil made some changes and implementation..in particular traslate a lot of things in english ad add realistik roadsigns and road directions, can i do it? if yes,, how i can open this map whir GE... because it looks impossible...every time error... thank you! the map it's fantastic

Hmm 1-star premium mod!? You got to be kidding me!?