WotLK how to back my characters

[DzonceSRB]

I played wow 2 years ago on molten-wow,and now i want to return,how to back my characters on this acc,this acc is created 3y ago and i played here with them,can someone help me ? thanks

[Skuddy]

all molten characters were lost. you'll have to start over if you want to play here now.