CRE Loaded contribution mod / install

I need a contribution istalled in CRE loaded 6.15. The contribution is for drop down menus for categories, manufacturers, and also contains a search box. The contribution can be found at: [login to view URL],2306/category,11/search,dropdown The effect I want is to be similar to (have drop down for product type, Brand and also search box): [login to view URL] If contribution cannot be installed I will accept custom work to produce the same effect. I believe the contribution can be installed quite easily. I also require the search results screen to display the % saving (discount) from the MSRP or RRP (retail price). My database currently has a column containing the retail price and I have the code for calculating it, I just need this to be integrated to display in the results screen. I want it to be similar to: [login to view URL] want to display the retail price in one column, our price and then % saving.