Where to start with my C# Mobile programming Project?

Question

I have a project to code a web site for mobile (mobile app) and it should have a connection to DB, The page should obtain a new user registration (Custom Mobile Control), And a page for authenticating a user Log in, And a page for changing the user password. Can someone help me with source code samples that can help me, or guide me throw the process knowing that I'm not so good in programming in general. Thanks.