Does that plugin (is it a block? ) get added to the course after it is created, or does it just create the block for them?
You can see the list of blocks for example in your admin side -> http://yoururl/admin/blocks.php which has a number beside each instance of the block
If you click on that it will list all the courses with the block in it. This url is something like http://yoururl/course/search.php?blocklist=24
However if that plugin just creates the course - it may not be in it, and therefore is not used by the course. IT probably needs to log the creation somewhere (or may already do - I am not familiar with the plugin).