Bochek,
You have Ads on your site below every video.(see attached picture)
My opinion is to ask and give credit where credit is due. As stated before maybe link to the original source. That way if the WatchFirstNow account (http://vimeo.com/user15100903) ever got deleted users would still be able to find the content.
I also find it interesting that none of the videos uploaded to your Vimeo account is public and the only way to view them is via the www.WatchFIRSTnow.com website that includes personal/private Ads.
-Clinton-

