After a bit more investigation on the AV connection front for my Creative ZEN, I found the following :
A definition of the AV pinouts for various media equipment and particularly the Creative ZEN.
I already have a Camcorder Cable, so one of the tricks I found in some AV forums is to fully insert the 3.5mm connector and then pull it out by one click. If you do the maths it means you get Video, Ground and Right Channel Audio.
Trying this on my unit (with my Camcorder Cable) it works pretty well.
