Board Thread:Support Requests - Getting Started/@comment-10608751-20140510003649/@comment-856287-20140517181704

You copied the instructions. If you read them, you'll see it says to create 5 new MediaWiki pages, and 2 new Template pages: The widget requires the creation of 5 MediaWiki pages (hence the requirement for administrator access or permission): On top of that, 2 template pages are also needed, which are:
 * Mediawiki:MP
 * Mediawiki:MP1
 * Mediawiki:MP2
 * Mediawiki:MP3
 * Mediawiki:MP4
 * Template:MPC
 * Template:YouTubePlayer