To view and resolve conflicts for merge publications:
1. Connect to the Publisher (or Subscriber if appropriate) in Microsoft SQL Server Management Studio, and then expand the server node.
2. Expand the Replication folder, and then expand the Local Publications folder.
3. Right-click the publication for which you want to view conflicts, and then click View Conflicts.
Source:
http://technet.microsoft.com/en-us/library/ms152576.aspx