[youtube=425,344]
[/youtube]
[youtube=425,344]http://www.youtube.com/watch?v=GhOMAvX2kfE[/youtube]
Use the direct URL between the youtube BBCode tags.
You need to have the numbers in the code. :]
They're the width and height, respectively, from the HTML embed code for the youtube videos
<object width="425" height="344">You're welcome.
