It seems that this is proving inordinately difficult for people, so here's a simple guide:
First find the youtube video URL that you want to embed, for example:
Code:
http://www.youtube.com/watch?v=44mw37d8LQw
Second, copy the string after the "=" sign, in this case
Now go to the post you want to embed it in and click on the "YouTube" icon (it's the one with YouTube written on it), not the Insert Link icon (the one with the globe and link).
This will create a pair of YouTube HTML tags with the cursor handily placed between them:
Code:
[YOUTUBE] | [/ YOUTUBE] (I've had to add a space to show this)
Paste your string above (remember, just the 44mw37d8LQw bit) into the space where the cursor is.
Job done, take a rest and admire your handiwork.
Please note that there is NO equivalent facility for Vimeo - I believe that you can only post the link to vimeo material.
SD