The program does not keep a record of the courses and sub-topics in the order that they were taken. However, it does keep track on whether a course and sub-topic was completed.

Launch the program and select the course you were working with. Maximize this window. On the right-hand side of the screen, you will see whether a course was Complete, Incomplete or Not Attempted. If the sub-topics were followed in order, then you will look for the last Complete or Incomplete sub-topic.