Hi and welcome in our support forums
Subrion (former xooArticles) used to be a publishing platform for posting news, articles, etc. It had 2 version - free and paid. Now the free version is still available for publishing package. You can download it as the guys advised.
If you need a free directory you can try Omega version -
free directory script
We are also going to make our core functionality (which is basic CMS now ) free so it could be used for simple sites.
Let us know if you have more questions