Not familiar with the equipment but I'm very sure that if you cant find the cable but can find the right cables which have the connections/sockets/plugs you are looking for then you can do some very simple re-wiring if you buy the lot: non TTL flash triggering is a simple short circuit - you just have to figure out which wire you need to attach to which wire when you cut the cable... of course you would have to figure out and be comfortable with manual exposure control of your flashes..

That is what i do but for off-camera flash rather than wired - i can fire two flashes off one remote if i can be bothered to wire up my hacked device properly.

"In every colour, there's the light.
In every stone sleeps a crystal.
Remember the Shaman, when he used to say:
Man is the dream of the Dolphin"

Rich Meadows Photography