Instructions
Visit the GoonyGoon Skylands web page and click on the "Download Skylands" link to save it to your computer.
Right-click on the folder once it has downloaded completely and select "Extract all" from the context menu. Follow the prompts in the wizard to extract the files.
Rename the "World5" folder "world" and then delete the existing "world" folder in your own "Minecraft" server folder. Once deleted, click and drag the Skylands "world" folder into the "Minecraft" server folder.
Double-click on the "Minecraft_Server" file in the folder where you dragged the Skylands "world" folder to start playing in the Skylands "Minecraft" map.