This would be better in the TS12 forum. That said, there is no migration tool per se. Start your TS2010 CMP (if you can't access it via a desktop shortcut, open My Computer, and navigate to C:\Program Files\Auran\TS2010\bin\contentmanager.exe and save the routes and sessions to a CDP file.
Alternatively, you should also be able to import everything from TS2010 to TS12 if you want to go that route. Fire up TS12's CMP 3.5, then use Import Content from the File menu. Go to the C:\Program Files\Auran\TS2010\Userdata\ folder, using the Skip All option when asked (and it WILL happen at some point) if you want to overwrite any existing content.