They don't seem to work for me. I put the link between the two youtube things and it doesn't show up. What am I doing wrong?

If you look at the URL, you should see something like http://youtube.com/watch?v=XXXXXXX. Put XXXXXXX in between the youtube tags. Like so:

QiT2cbyRtAI

(quote my post to see the tag)

ah cool. thanks. I just put the entire link.