How to use MUI for loading user info screens

Can anyone guide me on How to use MUI for showing User Registration page and pages for asking where to install the package.Anysample code for user registration?

!insertmacro MUI_PAGE_COMPONENTS

will allow them to choose what to install

!insertmacro MUI_PAGE_DIRECTORY

will allow them to choose where to install it.

as for registration not sure but you could probably do a custom page.