Cs-cart simple checkout page

I need Cs-cart checkout page to be modified as follows: 1) Now: When the user go to One-Page checkout: 2 options are showing "Login for registered users" and "Create account button" for new customers. To be: Directly New customer option to be chosed and create account fields to be displayed. And a link to Login page to be put 2) Now: First step of checkout page is with user fields: "username, e-mail & password" then the user click submit and the second step is with delivery/billing fields then click the button continue and third step is to choose payment & delivery method then continue and the fourth step is review of order. To be: All steps on 1 screen