Click on a model to download and choose to "open" the file instead of saving.

Then <Extract> the file to the C:\ Program Files\ FMS\ Model\ directory.

Same thing with landscapes but use the: C:\ Program Files\ FMS\ Landscape\ directory.

If your model just sits there, you are probably trying to fly an FMS 2 alpha 8.5 airplane
using FMS 2 beta 7. Uninstall beta 7 and then install FMS 2 alpha 8.5.

ggunners