you need to copy the embed code, like marion said, it's in the little box, under youtube video's info, under URL.
after you have the embed code, then do like blazen said. go to HTML mode (not insert flash) paste the embed code there, then click HTML again to back to normalmode to see/preview it.
I hate when I just miss a call by the last ring (Hello? Hello? D*mmit!), but when I immediately call back, it rings nine times and goes to voicemail.
What'd you do after I didn't answer? Drop the phone and run away?