Found a solution
Here's how I did to place a Youtube video on my Author page
You need to enter the Youtube share link into a field in the administration... I used Jabber / GTalk and change the title for "Youtube Link"
In your author.php file, you need to get the value of the above field and call it into a variable.
$link = $curauth->jabber;
$pieces = explode("/", $link);
This part of code use a specific function found on the web to retrive some information...
If I echo $link, I get this
http://youtu.be/XXXXXXX-XX for exemple.
Then after, with the explode PHP function, I explode in array the text everytimes it founds a /
$pieces = http:
$pieces = youtu.be
$pieces = XXXXXXX-XX
The $pieces is the one I actually search.
Call your iframe and echo the $pieces into the link.
<iframe width="560" height="349" src="http://www.youtube.com/embed/<?php echo $pieces; ?>" frameborder="0" allowfullscreen></iframe>
Hope this help some one!