I have gone through your requirement and I am ready to work on this project. As I have worked on similar requirement Project in Past with 100% client satisfaction.
First have a look at our previous work saLagi
If you are open to suggestion I can convert your site to php/mysql combination which will benefit you more instead of converting it into asp.net site as following
1. Site will run independent of platform and shLagi
We have more than 4 year experience in iPhone,Android,Windows,Blackberry app and Php development. We worked in more than 50 apps. We Provide Full service even after app [url removed, login to view] of my Client app(RoundMenu Lagi