Hi Carl,
Sven told me you're looking for an "you tube " tag or button.
I'm not working with vbulletin but with phpbb but.......
a litlebit of googling gave me this usefull link for some good information.
http://www.vbulletin.com/forum/showthread.php?t=199304
you're scriptkiddy
can do this job easily i'm sure of it
enjoy!!!! and suc6