OK, I this stupid Carpet steam cleaner, and I can't figure out how to use the d@mn thing!!! It is my mothers and she cant find the book that came with it!! It is a Hoover Steamvac Silver. There are two tanks, the top one is where you put the water and the cleaner and the bottom is the dirty water one. I filled it with water nd cleaner but when I turn it on nothing happens except the brushes move????

HELP, I need to do this right now because I have neither of my kids for the first time in ALONG time tonight and I need to get this done NOW!!!