This page deals with how the site is actually displayed. The two scripts that handle this are the news script and the view script. These scripts gather the data to fill the %content% variable in the HTML template and display it within the layout.
Upon installation, the news script is [web_path]/news.php. It's the page you access that displays the front page's news. The filename itself is not important, as long as you change the news_script entry in the site settings. So, if your front page has a splash image or something, you can name this file news.php and it will be fine.
This script handles all search engine functions. There are two ways to access the search engine functions: the simple and advanced forms.
The Simple search form can be placed on your page using the %FUNCTION::basicSearchForm% addon function variable in the site template. Or, if you wish to link to a search, link to search.php?q=search+words.
The Advanced search form is a little more complex. Here, you can input a query, search by topic, username, and/or date, and set how many results to get back.
If your script is set to syndicate news in .twml format, this XSL transformation script helps change that format into something useful. Support for PHP's built in XSLT Sablotron module is required. Right now, the only stylesheet given will convert twml to the popular RSS 0.92 format, since .twml isn't exactly world famous.
The format for the script's parameters are: http://.../transform.php?twml=[input twml file]&xsl=[output xsl file]. By default, it uses the files newsfeed.twml and twml-rss092.xsl in the [include_path]/files directory. The options don't require extensions, and the XSL option does not require the "twml-" prefix. So, the default usage would look like http://.../transform.php?twml=newsfeed&xsl=rss092.