I have a page that basicly accepts the username/passwoord in a query string and returns the userid.

http://www.pastie.org/private/6dkfb9k7rl2oxwzoawwdkw

using System;
using CommunityServer;
using CommunityServer.Components;

namespace CommunityServerWeb.speedtrap
{
    public partial class login : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Request.QueryString["un"] != null && Request.QueryString["pw"] != null)
            {
                string username = Request.QueryString["un"];
                string password = Request.QueryString["pw"];

                User userToLogin = new User();

                userToLogin.Username = username;
                userToLogin.Password = password;

                LoginUserStatus loginStatus = Users.ValidUser(userToLogin);
                if (loginStatus == LoginUserStatus.Success)
                {
                    Response.Write( CSContext.Current.User.UserID);
                }
                else
                {
                    Response.Write(loginStatus.ToString());
                }
            }
        }
    }
}

Anyone have any suggestions on how to convert it to use the Umbraco API and return the Userid?