I suggest you think about the fact that what you buy will be saving your life. Seriously consider the quality, craftsmanship, and the safety record of the rig you buy as well as the price.
OK, bye...
Try this. On the right side of the camera you should see a small little circle. This is actually a plug that protects the conection for your shutter release. Pop it out and plug in your shutter release. If this doesn't work.... oh well.
Here's the real deal...
ftp://ftp.synclogic.net/flashtech/pdf_files/charts/whitelight.pdf
ftp://ftp.synclogic.net/flashtech/pdf_files/charts/redlight.pdf
ftp://ftp.synclogic.net/flashtech/pdf_files/charts/duallight.pdf