@Amber8 I don't know of any YouTube videos but it seems pretty easy. I might even try a video later. I've always wanted to try out this world.
Go to the link provided above, download vanilla or chocolate, (or both) download EllaCharmed's world file. Replace the current world file with EllaCharmed's. Put the vanilla or chocolate in your saved file and that should be it. There is a detailed step by step list of instructions at the bottom of that linked page if you need more help. Also, I had to right click on the download link to get the download to start.