Lors-Central has the ability to show one version of one course to one class and another version of the same course to another class. This is managed in the "course associations to dotLRN class" link on one-course page (Section 2):
There are diferent 2 ways to change the wich version of the course is shown in wich class:
With the "Make Live Everywhere" link on the top table, this will set the same version of every course on all classes. i.e. If you click on the "Make Live Everywhere" link on version number 2 then all classes will see that version:
With the "Set to" collum on the bottom list, here you can select wich version will be shown on every course ( The version number is the number on the first collumn on the top list). Once you have selected the number click on "Update Versions" button:
You can see wich classes are using the course by cliking on the number of the "Live Classes?" column on the top table.