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I could not find a readily available way to have the News module to render articles for a topic to embed in an html page via an <iframe> so....
1. Copied modules/news/templates/index.html to modules/news/templates/news_home.html
2. Copied modules/news/index.php to modules/news/home.php
3. Updated modules/news/xoops_version.php to include the news_home.html template and updated the News module database using Modules Administration update
4. Updated modules/news/templates/news_home.html to have home page contents. (Welcome message, yadda, yadda, yadda)
5. Fiddled with modules/news/home.php to reference the news_home.html template, hard coded the News topic, etc.
6. Updated modules/system/templates/system_homepage.html to redirect to /modules/news/home.php