Simple PHP/html page from PHP script with vBulletin

I have a vBulletin (written in php) forum board (at www i runbox com) running a PHP script called Connect with Facebook. See the "Connect with Facebook" button on i runbox. I now need to make a simple html page outside the vBulletin application with the Connect with Facebook button/script running on the html page. So that it will connect with the php application just like the script connects with the application now. I do not know php. I try to pate the code into a the simple html page, but that does not work. So probably there is some simple php code that is needed to make the script code connect with the php5 server. This is probably very easy for the person who knows it.