1. In Joomla administrator interface go to Extensions -> Extensions manager -> Install.
2. Click on "Choose a file" to select the package and click on "Upload and install".
3. The Installation succedded
4. Go to the Dashboard and click on "Options"
5. Activate jQuery if you have display issue in the front and activate jQuery-ui if you have drag & drop issue while editing timetables in the Front-end.
Note: If you upgrade : Open each activity and save. Open each Timetable and save. It is not possible to change an existing "fixed" Timetable to "adaptative".You have to create new timetables.