http://www.castlex.com/modfaq/index.html
On the left index, under "Trackers" click "Windows", then (in the main pane) the link under the Modplug Tracker section... leads to a directory with the tutorial in it.
On the left index, under "Trackers" click "Windows", then (in the main pane) the link under the Modplug Tracker section... leads to a directory with the tutorial in it.