Developing Search Result Display Function For an Yahoo Retail Store

I have a toner retail web site running off of Yahoo store, I am looking for a developer who is familar with Yahoo Store's platform and technology. Who can develop a nice search result display for our yahoo store products. Currently the product search result commonly generated by an Yahoo store is displaying the result in a very unorganized and confusing manner. If your team is able to design such function for our yahoo store, please let me know how long will it take and how much will it cost? Please also provide some example of similar work done before with a Yahoo retail store.