I have the same problem.

After the first try MfE hasn't been available in add email dialog so I guess that MfE account is created at some level.

.desktop item for libasconfigapplet is in it's place at /usr/share/applications/hildon-control-panel/, but nothing is seen at statusbar.

Also tried mfefolders, but that doesn't show anything.

Where does MfE store it's account information?