Where can you download all 3 seasons of Xiaolin Showdown without using a torrent?

You can watch all the episodes of Xiaolin Showdown on Kids WB and Cartoon Network. or you can watch full episodes online at http://www.freewebs.com/xiaolinpunk/ though the episodes have a limited amount of time every so often. 72 minutes are all that can be watch within a couple of hours.