For those of you who are still wondering - here it is - it's a tiny little thing on the right hand side of the screen, about half way down the page.
Thank you to everyone who participated! and another big congratulations to Cristina A, who already has her kindle voucher and I'm sure she's busy searching Amazon for some great reads!
Have a wonderful week everyone! Mine will be spend reading over Alter's manuscript to prepare it for beta reading by next weekend.