My wife and I are just getting into digiatal photography. We are interested in starting our own wedding photograpy business. So far we have a Canon Digital Rebel XT, a telefoto lens, tripod and have just gotten a small umbrella lighting set off of ebay. I created a small studio in our living room to play with and learn the new equipment and have so far not been able to figure it out. One of the 2 bulbs is a slave only, and the other can act as either a slave or as a master. The 'master' bulb came with a cable that is meant to connect it to the camera to trigger the flash (except it doesnt fit...). As of now, I have been able to get all 3 flashes to fire (bulitin flash on rebel, and 2 umbrella flashes) and have played with their locations, but any picutures taken have shown little to no light from the 2 umbrella flashes. I have moved them closer, further, higher, lower, anywhere that i could think, but it makes no difference at all. I have mainly used the auto feature on the camera (for simplicity) but have also tried with different shutter speeds, so far the best results were at 1/80 second. I know i left something out... but if you could, please help!