O.K., this one took me a long time. You need to position the candle over the torch just right so it turns on the torch when it falls then lands lit upright on the conv belt. I placed the candle in the lying down position with the wick on the right side. I put it pretty high up, sort of just under the bottom shelf) Make sure you have the belt hooked up to the steam so that when the candle goes under it, it will steam then move the belt. The candle moves to the top fuse (which is already put there for you). Place one dynamite so that the top of it just touches the end of the fuse, and put the next dynamite next to the first one with some space between them (again you have to play with the distance so that it blows up the bricks). I hope this helps, it is just a matter of moving the candle around so it lands just right.
Good Luck