On that site, use Anik E2 @ 111.1.
The skew number you get will be xx.x amount less than the 90 position on the dish. For example, with the dish set horizontal, the 90 position will be right at the mark. Twist the dish counterclockwise(viewing from the rear) until you reach xx.x less than the 90 mark. Mine setting is 76, yours should be very close.
Iceberg does a better job explaining in some earlier posts, you should check them out. It may sound a bit confusing but it's really rather straightforward.
As far as azimuth, aim with the center LNB and the other will fall into place when you have the right skew.
What zipcode are you at?