I just purchased an old pinball machine please help!!!?

I just purchased a wonder wizard cd charlie pinball machine. I am wondering if someone could tell me where I could get the users manual for this. I cant figure anything out on it. There are ons on the back but I don't know what they are for and i just pushed them to see what they would do and I think I may have messed up the game...lol. For Ex. both flappers flap when I hit one side. I don't know if it's something I did or if its the game so any help would be appreciated .