Ford Galaxy ht leads on wrong ports on coil

just bought the car, had service done now running lumpy on idle, spoke to a mate who said sounds like ht leads not connected correctly on coil pack(1 in wrong order), cannot find anywhere on web with a diagram, the coil i have is a after market one , so no numbers on it , but just need diagram or pic of which port is which number on the coil so can match correctly to plugs ,

thanks