Same here..
All you can do is to download the video and then watch it with BSplayer.
I just tried and it worked:
1. Copy the url from tudou (in this case
http://www.tudou.com/v/5JfnKdATBo8 )
2. Go to
http://www.flvcd.com/
3. Paste the link in the search field
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4. Replace the
/v/ part of the link with
/programs/view/ (in this case the link will become
http://www.tudou.com/programs/view/5JfnKdATBo8 )
5. Press the GO button
6. You'll be presented with a link, just right click on it and select "Save destination as..."
7. Once the FLV file as been downloaded open it with BSplayer and enjoy watching the video ;)