Lambert received a mixed welcome at Carrow Road, with a few jeers heard among general applause for the man who masterminded the Norfolk club's meteoric rise up to the top flight from the depths of npower League One.
Lambert enjoyed the last laugh as substitute Weimann hit a second-half brace to turn the tie around after Brent Hol-man had cancelled out Steve Morison's opener.
Christian Benteke cracked in a fourth during stoppage time to move Villa a step closer to Wembley.




