This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
after purchasing the voucher for part II (usually together with part III) you are supposed to try to download the assignment from certmananger.net. It will tell you how to login. It will most likely also tell you that you don't have the permissions to download the assignment, and where you should request them. Do that, and then you can download the assignment. Same game for the upload, most likely (differs).