So you start out with your youtube url:
http://www.youtube.com/watch?v=JSxmswGOjjc&feature=player_embeddedYou need to change the url to look like this, I'm not sure why but that's the way it is:
http://www.youtube.com/v/JSxmswGOjjcNotice that it's youtube.com /v/ whatever code comes after the "v=" in the original url.
At that point you can put your new url inside of some [.flash][./flash] bb tags. It's easiest to get these by hitting the icon that looks like
above the text box you reply in. If you don't see that icon you may be using the quick-reply box, just hit the preview button and you'll be on the right page. If you still don't see the icon, then look more closely
So, hitting that icon gives you [.flash=200,200][./flash]. You can put the URL in there so it looks like [.flash=200,200]
http://www.youtube.com/v/JSxmswGOjjc[./flash], but the 200,200 in the tags means that the video will be 200 pixels wide by 200 pixels tall... which sucks and looks like this:
http://www.youtube.com/v/JSxmswGOjjcPsh, no video is square and tiny. I usually play around with the height and width by using the preview button so that the video is a bit bigger and not square. I noticed this vid is widescreen, so I'd start with 800,450 (width,height) and that will probably get us real close to the native aspect ratio (because that's taking 16:9 and halving it to 8:4.5).
http://www.youtube.com/v/JSxmswGOjjcIf you quote my post you can see everything as I typed it and compare it to what showed up on the screen when I hit the post button. Cheers.