Small hack on PonyGallery ML joomla component

I need someone to do a small hack Pony Gallery ML component for me. My site is about drawing cars, and visitors can submit their drawings on it. On my site visitors and members can vote on each picture/drawing, also write a comment on each one if they want to. So today under each drawing they can make one vote/ rating. It look like this: Picture rating 1 (bad) o o o o o 5 (good) [vote] What i want the coder to do: Hack so that there are four different votings under each picture, instead of one as it is now. So it would look like this: Details 1 (bad) o o o o o 5 (good) [vote] Proportions 1 (bad) o o o o o 5 (good) [vote] Wheels 1 (bad) o o o o o 5 (good) [vote] Shading 1 (bad) o o o o o 5 (good) [vote] AND then make it calculate the average of all added together. So for example, if someone voted number 5 on all areas, the drawing would get an averge of 5. Voted somone 3 on all, it would get an averge of 3. ANd I want this averge score to show. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform All normal browsers