I agree with you that the National Geographic Education site is going to be awesome. However, during the transition between Xpeditions and National Geographic Education, there are some areas still under development in the Beta version. May I suggest that members check out the discussion The specified item was not found. which addresses some of these changes and contains links to site pages which explain which parts of the National Geographic Education site are complete and which ones will soon be developed.
The new website will be phenomenal once it is finished! Thanks for reminding members that Content Partners are keeping their offerings updated and making them more comprehensive.