The default "Custom HTML" module in Joomla! 1.5 does not allow "content plugin" parsing at all. So we wrote Custom Code which allows you to do just that and furthermore gives you the freedom to execute custom PHP snippets (along with HTML, CSS and JS) on a plain textarea box, with no WYSIWYG editor enabled.
Very handy when you want to convert an AllVideos or Simple Image Gallery plugin tag to a video or gallery respectively. The module allows for parsing any Joomla! "content plugin".
Version 1.1 fixes a small bug that did not allow the module to properly parse content plugins in some occasions.
You can download the latest copy here:
www.joomlaworks.net/downloads/?f=mod_jw_cc-v1.1_j1.5.zip
The plugin is released under the GNU/GPL license.