ok see these links its give you a free templates and styles for your
applications . you can steal some ideas from these links
http://www.freesitetemplates.com
http://www.templatemonstar.com/
and here is a very good links for asp.net . read it carefuly and study it .
quickstarts.asp.net/.../Default.aspx

and here is another link . you can download videos about dotnet . they teach
you how to build your own website.
http://asp.net/learn/

and i will give an advice , go simple in your code ;)
i hope that help you :)