Post voting plugin not working : wdpv_vote standalone="yes"

Hi,

I installed the post voting plugin but it's not working.
I just get wdpv_vote standalone="yes" (after post).
Any idea ?

For example :
http://www.oreille-malade.com/2009/10/sepultura-un-ingenieur-du-son-se-suicide.html

(Wordpress 3.1.4, BuddyPress 1.2.8)