Yes, I had followed the instruction, but it still not working. I had get the right certificate and private key without any problem. There is an error when I choose new download proovision profile file. It showed me that Did not find XML plist in ‘C:/Users/clayton/Downloads/CCalling_ADHOC.mobileprovision’ . I’m using Traditional Chinese Win 7. I had tried to set my language to English and did again. It showed the same error message again. Please help. Thanks!