[Sampeng]

on you tube you will see something on the right saying embed
click on it and copy.
you will now have this.

object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/NRCoRR-7GCU&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/NRCoRR-7GCU&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

[cnter][t]Put the bit I have highlighted in red here[/yt][/center]

and put the e back in the first centre and the y back in the first [ ]