36718 Sports Pool - Tipping Comp

I have an existing Sportspool PHP prog installed and need a small change made. At the moment it does not allow someone to select a draw/tie, they can only select one team or the other. I need a change made so that people can tick a box to select a draw/tie. Then if the game is a draw/tie that person would get 3 points instead of the one point people get for selecting a win. I have contacted the original writter of the script but have not heard back from them and their website has not been updated since 2001. Have attached a copy of the file for you to look at. I have already installed this and have it setup and running so just need the change made, not a new program.