ok. ill post the render i used, well i dont think u will find it anywhere on the web

i rendered it myself, will post in some seconds.
-punisher
ed:
http://img88.imageshack.us/img88/5980/sasukeby9.png
press right mouse click on the image > save as...
then go to the place u saved it on ur pc > right mouse click it > open with... > photoshop
this way it will maintain its transparrant background.
if there are any problems with the tut, try figuring it out urself, if u are really stuck feel free to ask.
-punisher