I am a teacher in MN and need some help converting (revert?) a Premiere 6.0 project file back to 5.1. I was at a wrestling tournament last week and one of my students downloaded a trial version of Premiere 6.0 and worked on his project that he started in 5.1. Now that the trial has expired the project will not open in 5.1 because it was last saved in 6.0. Can anyone help?