Bookmarks and Private Messages and Signatures were not part of he migration unfortunatley. You'll need to start again with those conversations and settings.
You can update your signature in your profile settings.
I booted up my home laptop and found Ryan's post with VOX announcement:
Your current profile and everything associated with it will be migrated over to VOX. When you log in through VAM you will automatically be synced up with your community profile within VOX and you can pick up right where you left off.
So, am I wrong in expecting my Private Messages and bookmarks to be migrated?