emsnews on "The new video posting system doesn't work at all"

Let's try this out: I go to the 'insert media' page. I click on the 'From URL' on the left sidebar. I then see 'From URL' on the right side with a 'http://' in a black slot below it.

So...I click and drag my url from You Tube...AND NOTHING WORKS. It doesn't work on Safari!

Please tell me, step by step, how you manage to have it work. I am now utterly baffled.