Okiedokey. Fool's guide:
1. Click the following Image and save the .zip file to your Desktop.

2. Double-click the file once it has downloaded to your Desktop.
3. Leave that window, and double click My Computer.
4. Double click Program Files.
5. Double click Blockland.
6. Click on the other window with the Editor folder in it.
7. Drag the editor folder from inside Editor.zip, to the Blockland Folder.
8. Open up the file "main.cs" in the Blockland Folder by double-clicking and then selecting Notepad from the menu.
9. Find the line:
$defaultGame = "Add-Ons";
in the file.
10. Change that line to:
$defaultGame = "Add-Ons;Editor";
11. Save the main.cs file.
12. Close the main.cs file.
13. Open Blockland.
14. Start a Game.
15. Press F11 once you have spawned.