<?php
//Put in functions.php
function bow_welcomepack_s2member_redirect( $url, $login_info ) {
  if ( !$login_info['current_user'] )
    return $url;

  return dpw_first_login_redirect( $url, '', $login_info['current_user'] );
}
add_filter( 'ws_plugin__s2member_fill_login_redirect_rc_vars', 'bow_welcomepack_s2member_redirect', 10, 2 );
?>