Hello!
the page that you referencing is basically a text/ vimeo code (in the text area) and a series of images after them.
To achive this you just need to set the Files Placement to "after" and insert the vimeo code in your text area box.
Otherwise you upload all your media (images/sound/film) normally and then you click the Edit button (the tools icon) under each kind of media.
Select "inactive", then "Insert image" and then Update.
Now in your text area you have
<media:gimg 'NAME_OF_FILE.jpg' />
which is basically a manual way to insert and have your media in your text area.
For example to get what you describe:
Text goes here
<media:gimg 'NAME_OF_FILE.jpg' />
<media:gimg 'NAME_OF_FILE.mov' />
<media:gimg 'NAME_OF_FILE2.jpg' />
<media:gimg 'NAME_OF_FILE3.jpg' />
More text goes here
<media:gimg 'NAME_OF_FILE.mp3' />
More text goes here
More text goes here
<media:gimg 'NAME_OF_FILE4.jpg' />
More text goes here
Html goes here
Hope this helps.