Any tips for PHP4 + PHP5 on Fedora

[citronz]

By default I have PHP5 as DOS configured on ISPConfig server.
But now I need to add support for PHP4 as well.

Which way is better - PHP5 DSO + PHP4 CGI or PHP5 CGI + PHP4 CGI?
I guess that
$go_info["server"]["apache2_php"] = 'both';
should be changed to
$go_info["server"]["apache2_php"] = 'suphp';
in any case then?

Thanks!