This regex works:

<item>
<title></title>
<link>$doregex[url]
<regex>
<name>url</name>
<expres>hq_url":"(.+?)"</expres>
<page>http://www.dailymotion.com/embed/video/x18w5up</page>
<referer>http://www.dailymotion.com/</referer>
</regex>
</link>
<thumbnail></thumbnail>
</item>

However it is ouput like this now:

http:\/\/www.dailymotion.com\/cdn\/H264-848x480\/video\/x18w5up.mp4?auth=1398471376-2-h5mlipjn-7e9ac8bc1c556bfd490d731db32b761a

Im sure u know the \/ has to be replaced with /