In the material setup window in Invigorator, you will need to apply layer map and transparency. Your mapping source needs to have alpha channel in order to see the other side of the continents.
As for the cloud layer, create another sphere on top of the land sphere and make it slightly larger than the land sphere (depending on how high you want the clouds to hover over your land. Again you will need an alpha channel on the animated clouds layer. BTW, be sure the spheres are centered so that the bigger of the two completely surrounds the smaller.
Hope that helps.