backwards jade whip?

how do you do a backwards jadewhip?

I think you mean something like this

http://vimeo.com/2520706

Its the under whip, starting at around 1:45. For doing it from a jade whip, you just do the same motion, but catch the loop of the jade whip first.

Here is a cool Jade Whip:

http://www.youtube.com/watch?v=A48vwORRxlg&feature=channel