We're soon releasing v2.0 of Disqus for Joomla 1.5.x.

The new plugin features:
- category and/or menu selection to render the comments form
- MVC templating to easily style it as you wish (up to some level)
- totally re-written code to better integrate the latest Disqus service

The new plugin will be released by the 20th of May, 2009. ;)