lighttpd install and....

I ordered the xmoov player and got it all installed and it works with their pseudo streaming script. But it loads too slow and the people from the player company told me to install lighttpd. Here's a description of what needs to be done. [login to view URL] (scroll down to Pseudo streaming with lighttpd) This is a live site with a good amount of traffic so it would be great to test it out on an extra page where it doesn't effect the users... Please bit reasonable - it will be worth for you in the future. Thank you ATT: Adult website