well.. did you read the contest post? if so.. all you have to do because you're new is find 2 bloggers at 55 rep or below, please find someone that create a quality post but with undervalued cash out .. I mean, they really need some more attention from the community.
No.. you don't have to review all the post, it is easier to find whether someone you choose already in this week contest or not, just by checking on the comments on his/her posts, if there's nothing mentioning about #payitforwad, then you're save.. hahahaha, I mean you got a bloggers.