Change Register and Reset link texts

You can use the wpmem_login_form filter to str_replace the text:

add_filter( 'wpmem_login_form', 'my_login_form' );
function my_login_form( $form ) {

     $old = array(
          "Click here to register",
          "Click here to reset",
     );

     $new = array(
          "Register",
          "Reset",
     );

     $newform = str_replace( $old, $new, $form );

     return $newform;
}

It worked. Thank you.