Autologon

i have 2 windows 2000 proff and 1 windows NT4.0 workstation in which Autologon is enabled

currently these machines are not in Domain and are loggin in automaticaly using local user “user1″

i need to join these machines in to a Domain and it should autologon using the Domain user ” user2″

pls help me… how can i do the same?

thanks in advance