The original thread: http://www.freestompboxes.org/viewtopic.php?f=7&t=4216
The boards will need a small jumper on the back. See this post here: http://www.freestompboxes.org/viewtopic.php?f=7&t=4216&hilit=aqua+puss+pcb&start=220#p54377
Board pics (courtesy of abfackeln)