Need extension for joomla 2.5

Dear all,
Currently, I need an extension for joomla 2.5 but this is a commercial extension and very expensive so everyone can share it for me or with small price
This is extension that i need: community quiz 3.1.5 (latest version)
http://www.corejoomla.com/products/community-quiz.html

Thanks
Need extension for joomla 2.5

See original post by miennh84