I fixed pornhub with the following two changes.
The "Regular expression" stays the same but change your "Replacement" code to:
Code:
<object type="application/x-shockwave-flash" data="http://www.pornhub.com/players/pornhub_embed_2.swf" width="608" height="476"><param name="movie" value="http://www.pornhub.com/players/pornhub_embed_2.swf" /><param name="bgColor" value="#000000" /><param name="allowfullscreen" value="true" /><param name="allowScriptAccess" value="always" /><param name="FlashVars" value="options=http://www.pornhub.com/embed_player_v3.php?id=$p1"/></object>
ALSO
Change the "Embedding Regexp" to:
Code:
http://www\.pornhub\.com/embed_player_v3\.php\?id=([\d]+)