Here's the link I mentioned in my last comment for anyone interested -
http://games.groups.yahoo.com/group/vishangroschessvariants/
Original writeup, graphics and gifs for chogo(latrunculi), PiRaTeKnIcS
and
cascudo are now included in the files section.
I will also be trying (with a little help from Hans) to correct the text
diagrams within the chessvariants version of the chogo writeup.