Bob,
I will try to give you an example of how to post You Tube Videos here. First you go to the Video and Copy everything after the = sign. In the Example below I put what you would copy in red.
Example:
http://www.youtube.com/watch?v= y3VJrWrNWIw&feature=feedlik
Here you would copy from y3VJ on to the end. Then when you want to put it into the post paste that part in and put the YT tags around it.
Example: [ yt]XXXXXXXXXXXXX[/yt] The first bracket [ must be right next to the y in this URL.
Ron