Changes cms question2answer

I have to make changes on a cms question2answer the web site is very similar to yahoo answers, you earn points for each question, answer comments etc ... I have to be able to add features to my website 1) Users have to earn points when they share the post on social Notwork 2) users have to earn points qundo follow our facebook, google 3) create custom plugins for badge 4) Create customized pages for reward and other changes