To make your own globe of this D&D setting, first print both images out so they are the same size:
Right click on the top image below (the map of the "Western Hemisphere")
Select "Save Picture As" from the pop-up menu
Save the image to your Desktop, your download file, your picture file, or someplace else where you can find it easily
Open the image up in a standard bit map editor (like Microsoft Photo Editor)
Before you print the image, make sure you have selected "landscape" for the page orientation and "fit to page" in the print settings
Follow the preceding steps for the second image
Once you have two printed copies of these images of equal size, all you need to do is cut, fold, and assemble them with adhesive tape!
Image 1 (Western Hemisphere):
Image 2 (Eastern Hemisphere):