You have to make two text files. Truth.txt and dare.txt
Since mIRC now uses the user directory for the base location for accessing files, I can't tell you the exact directory name where you need to put those files.
I can, however, tell you how you can determine where those files have to go.
You can determine that by opening mIRC, then typing in
//echo -a $qt($mircdir)
This will display to you the exact and full directory where the two text files have to go.
BTW: This information is posted at the very beginning of the Description by the author.