Well it's still not working for me

"Press the YouTube button" - which button where ?
"Inner pair of square brackets" - which square brackets where?
From the source video on my youtube page I can by right clicking :
'Copy Video URL' which gives me:
[ Invalid YouTube link ]
or
'Copy embed code' which gives me:
<iframe width="640" height="360" src="
" frameborder="0" allowfullscreen></iframe>
No Youtube buttons or square brackets in sight !!!!