search for: lighttpd_rails_and_php

I have built a webshop in rails, now it''s time for invoice handling through a third party. The communication will be done by xml-rpc. The built in ruby xml-rpc doesnt seem to be compatible with the third party so I have to use a special php-script (provided by the third party) that will handle the interaction with them. Where on the server should/can I put the script? I would prefer