If the Flashcopy manager console always hangs while you are trying to restore the mailboxes. Firstly, try to install the Microsoft Visual C++ 2010 SP1 Redistributable Package (x86). It fixed the issue in my environment. If it does not work, try this one which has more work to do: http://www-01.ibm.com/support/docview.wss?uid=swg21404691
Jackie Chen's IT Workshop 