These screen savers are for Mac OSX only. Three flavors.
To download, click on the version you want.

To install them on OSX:

1. Download the .Sit file and unstuff it.

2. Mount the enclosed image file.

3. Drag the screen saver to the Screen Saver folder located
on your hard drive under Library/Screen Saver.

4. Configure the screen saver in the Screen Saver
control panel in System Preferences.

Enjoy!
PS: If someone knows how to convert these for the Windows format please let me know!