Free extensions for Joomla!

Hello and thank you for this great plugin.
I wanted more options (stars) for the content like 10. I followed the following "tutorial" http://joomla.vargas.co.cr/en/forum?task=viewtopic&f=16&t=1781&sid=7e87955fe1e1652c9dca3cc0081456fb (Last post), but the code have 2years and is changed.

On the css I saw "extravote-star a.ev-10-stars", then I can conclude it´s possible to put 10 stars.

My question is: How to enable 10 stars?

Thank you and sorry for my bad english

I think is "extravote-star a.ev-10-stars" is for 1 star and "extravote-star a.ev-50-stars" for 5 stars and i think is need to make some changes in plugin files.Im looking answer for that too.

Someone help PLEASEEEE