Do you have a yarn swift and ball roller? If not, I would suggest you take your hanks to your local hobby store or yarn store and ask if they could roll it for you. That would be the easiest thing if you've never used a hank before. That way you could see what they do.
You will HAVE to roll the hank into a ball before you can use it. It can be done manually. Here's a video that shows how a hank should be untwisted. http://www.youtube.com/watch?v=Q4EvjgBkSQ0&playnext=1&list=PL314FD71D590B2AD1
Although she rolled it into a ball, it was not a center pull ball.
Have you rolled center pull balls before? There are lots of videos online that show how. Amy has one on this site that shows how. That makes it much easier to work.
Have fun with your new yarn. I love yarn that comes in hanks. It seems so decadent somehow.