To setup Wins to allow replication througout the domain you need to implement Push & Pull policies on the wins servers.
To force Server(A) to replicate to Server(B) you have two options. 1) If you setup Server(A) to PUSH data to server(B) it will send data to Server(B) at whatever time interval is specified in the WINS setup. 2) If you setup Server(B) as a PULL serevr it will request data from Server(A) at whatever time interval is setup.
To make Server(A) Replicate to Server(B) and Vice Versa you should set Servers(A&B) as both PUSH & PULL this will allow both servers to replicate information to each other.
For more details about WINS replication try looking at Technet.