How to make a score / kill counter script for and then add it to a leaderboard on a website

So basically we’ve come a long way with are game its a horror survival game. We almost have the campaign finished and the survival mode is practically done the only problem is the guy doing are programming has gone away for a while and we need a script which can count your kills and update a leaderboard on our website please reply for more information. Also check out our website if your interested : http://www.thehollowdawn.com

Answers is not the proper place to solicit for programmers to write custom code for your projects. You should post on the Unity Forums in such situations. Also, a quick Google search would have pointed you to this example: Server-Side High Scores