by John McGettrick.
What module type was it? If it was an Assignment then it will be the PLagiarism plugin. If it was a Turnitin Assignment then it will either be Direct v1 or v2. To find out which try and add an activity to a course, it will either be Turnitin Assignment or Turnitin Assignment 2.
The migration tool is available in a tab via Site Administration > Plugins > Activity Modules > Turnitin Assignment 2 if you have Direct v2 installed.