lighttpd + Friendly url's

Hi Guys,
I’m trying to get Friendly url’s working with lighttpd.

I followed the wiki http://wiki.modxcms.com/index.php/Friendly_URLs_on_lighttpd i can get the url.rewrite-once rule to work fine but trying to use the lua script doesn’t work i just get 404 errors (the script run’s because i had to work out some lua error’s from when i copied it in)

I’m using modx 9.6.3 and lighttpd 1.4.13

Thanks