It's cool... I'll give you better instructions.

Just go in your Admin CP and click on vBulletin Options in the top left frame. Then Scroll all the way to the bottom where you mYvBindex options are. If you haven't already, check to see that the News Forum ID there is set. Then just click on "Save Changes" at the bottom of that page. Sometimes, even if everything appears to be set there, it won't kick in until you hit the Save button.