How to do Merge Replication?

Question

I tried to do synchronization of database between servers to synchronize a database using merge replication. Simply I've added publication in server A and subscription in Server B by declaring publisher as server A. But, nothing is working in it. I hav same database in both the systems which has only one table for testing. No data is transferred. But, it seems the snapshot agents is running in the replication monitor. I don't know how to start with? Just point me some idea to do that to do it simply...