lowjack

I have made and almost completed a map. The last thing I need to implement is the water. I can't seem to get the lake, river or waterfall to look or act correctly. Does anyone know where I can find a good Tutorial covering water, or if it doesn't exist is someone up to the task? Or even better, can someone just give me a quick list of steps. Nothing fancy... somthing like: 1) Select water object 2) Clck Map editor 3) Choose ..... 4) Thanks, Lowjack.