Favaro

First sorry if my english isnt too good. My question is, me and other friend can we change server without lose our progress? I ask it because me and my friend joined for error in the yellow server and we progressed in it, and now we have three medals and I have a evs leveled pokemon. Our problem is that other friends is in the red server n to play together, we would have that start again the game. So i ask that change me "Favaro" and "Dominuxpizza" to the red server. Again sorry for my english and thanks if u can help us