Create WP Plugin

I would like to talk to you about developing a WP plugin. Plugin goal: display posts by a "score" where the first posts are sorted with the highest "score" displayed first. Score variables: 1) IS = Initial Score = highest current score of any post; 2) PR = Post Rating; 3) DD = PD - CD = Post Date minus Current Date; and Score constants: 1) PRC = Post Rating Constant; and 2) DC = Date Constant. Thus, the score equation is: Post score = (InitialScore + (PostRatingConstant * Post Rating)) - (DateConstant * DateDifference) = (IC + (PRC * PR)) - (DC * (PD - CD)). For example, if the numbers are: DC = 4; PRC = 2; PD = Nov. 15, 2011; CD = Dec. 2, 20111; PR = 10; and IS = 70. Then the post score = (70 + (2 * 10)) - (4 * (Nov. 15, 2011 - Dec. 2, 2011)) (70 + 20) - (4 * 17) 70 - 68 2. In the admin panel I should be able to change the constants: 1) PRC = Post Rating Constant; and 2) DC = Date Constant to any number that I want. The plugin should run reach time the Loop is run. Thus, it will run on [login to view URL] or any other post page. This plugin does not work. But you may be able to edit it to make it work. [login to view URL] If you have any questions about the project, please let me know. Once you feel that you understand the project, we can agree on a rate (all payment will be via oDesk.) Thanks Scott