This is your new campaign homepage. The first thing you should do is invite your players. Click on the ‘Manage Members’ link in the right sidebar and send them an invite to join the campaign.
After that, take a look at your wiki. There is some more helpful info there.
Can we embed this video into a tasteful frame that auto starts when someone visits the page here: http://www.youtube.com/watch?v=C2Pt-LnQ2po
This one should only start when someone clicks on it and should be in a different frame. Give them some titles in the boxes too: http://www.youtube.com/watch?v=gik-jDVRDSg