GeSHi is a "generic syntax highlighter", originally designed for the phpBB forum system. It is licensed under the GNU general public license (open source). This article describes gotchas, fixes and improvements related to the stock install of GeSHi in Joomla 1.6.
On Tuesday I blogged about htaccess and a custom 404 page. Also in that article, I hinted that your CMS should do your 404 page for you.
In this article I will explain how to overwrite your 404 page in Joomla 1.5, without changing core code.
I've created a cheat sheet for Joomla 1.5 templates. Soon to be available on a nice printable page.
Don't make the assumption that Joomla module positions have to be displayed in the template. Modules can be displayed from within the article content using Joomla. This article briefly describes how to display a module inside your content.