Due to popular request, I am posting a mirror to the old Weiss Schwarz plugin (a discontinued but quite complete one):
http://s000.tinyupload.com/?file_id=28922254916789886088
(Yes, I know Tiny Upload sucks, but I like it all the same)
Be sure to read the README.txt file included in the archive...
If you encounter any problems with the plugin, do tell, and I will attempt to fix it the best I can.
Have fun! ;)
EDIT 1: Clarified an instruction about where to put the card images. New download link.
https://www.dropbox.com/s/h6gb5csbcpu0kzr/WS.rar?dl=0
this one is a bit more updated
any chance of an updated version of it