Change the displaying of products on CRE Loaded 6.2

This project is a small urgent project we would like to have finished fast! I have a shop based on a CRE Loaded 6.2 patch 13 that has been heavily modified and are using Norwegian language and tax so some adjustments compared to an original Creloaded shop may be needed. The development of this module will be done on a plain CRELoaded 6.2 version (install files can be provided by me), and I want the module to be developed as a module with install instructions. You will not get access to my live shop. I will implement the module based on your install instructions my self. I am available to test the modules during the development process to give feedback if needed. I want to change the way my products are displayed in categories. Today I show the products in columns view. I have changed the sort order to display my products by date added, with the newest products first. I want to change this to the following: I want all products in the categories to be displayed by random sort order so all the products new and old are mixed together in the category. But with one exception, if the products are newer then a specific numbers of days set by me in admin configuration they are to be displayed first at the top. 1. I want a configuration value in the admin interface to determine number of days for the new products to override the new default sort order. 2. On each products listing (in each category) I want do display the newest products first, but only if they are newer then the number of days set in the admin. If no products are in the range to qualify as a new product the default listing will be used for the whole page. 3. I want the default listing to be random. So the page don't look the same all the time. My main goal with doing this is to blend new and old products together. Today all the old products are displayed last. Please be sure that you understand completely the project you are bidding on (if not ask us before bidding). We are looking for an Creloaded and php expert that have a deep understanding of the Crelodad shopping cart code base. Please don't bid if you are not 100% sure that you can complete the task in time. If you deliver only a half finished product you will not get paid.