Install the extension via Ruby Gems:
gem install compass_formalize
If you're starting from scratch, create your Compass project:
compass create my-project -r compass_formalize
compass install formalize/dojo compass install formalize/extjs compass install formalize/jquery compass install formalize/mootools compass install formalize/prototype compass install formalize/yui
... and follow the provided instructions.
Licensed under MIT/GPL.
GPL license: http://www.gnu.org/licenses/gpl.html
MIT license: http://www.opensource.org/licenses/mit-license.php