I recommend downloading a 30 day trial version of RobotC and reprogramming your FLL missions. Most FTC teams that I have met use RobotC, and this would be a great way to learn it. You can configure RobotC for the NXT platform or the NXT/Tetrix platform.
You might also purchase a Logitech controller from parts.ftcrobots.com to start learning remote control operations. RobotC installs some excellent programming templates.
You can view
http://ftcforum.usfirst.org/forum.php without being on an FTC team.
You can register for the 2013-2014 season on May 15.