I had scrabble,deleted it,want it back it was not a bought one,it shows up on my itunes library list and on my itunes screen page7 but it is not on my ipad,every time i try to download it again it says it is allready installed,but it is not on my ipad,thank you.

At the risk of advising another newbie, have you tried just a sync?

if its not showing on the ipad, just go into the app store and download it again. You can download all you purchased apps as many times as you like for free.