This menu is a component for flash, just drag and drop it in your flash movie, you can set the buttons text and link to open by it`s custom user interface that you can see in the bottom of the page. The configuration is like the one of "Chrome menu" or "Matrix menu 2 ".
The file is in mxp file format, the standard for macromedia extension files. See how to install mxp files from our support page for more details about installation.