Mambo 4.5.2
To start operations Apache 1.13.19, PHP 4.2.x and MySQL 3.23.x is needed.
More information are on the homepage http://www.mamboserver.com
A short description (in german) is found on the site from Michael Kleß http://www.michael-kless.de/Text/WCMSfOS2.html and on the site of Team OS/2 Trier http://www.teamos2trier.de/prgvor/mambo.phtml