I think the instructions confuse people. The copy you make of the original and give it a new different name is just a copy to keep for your records (I dont make a copy, its wrong I have no need for a computer copy of it, I have a print out, thats enough for me)...you dont use that copy as the amended, you use the original client file that you used for EFiling the original return and mark is as Amended and include the 1040X.