Great news.  TechSmith contacted me and fixed my problem with the 30 day trial expiration.  The interesting thing is that they did it through Twitter.  I posted a message saying I could not get it to work and their support could not help (I had called them earlier).  Next thing I know I got a message on Twitter (called a Tweet) from a TechSmith rep and she put me in contact with an employee that handles educational issues.  Wow, the power of a social network still surprises me.