These instructions cover a full installation of Apache OpenMeetings, ATutor, and the new version of the ATutor Apache OpenMeetings plug-in on a Linux box (Fedora 16). Commands may be slightly different on other distributions. Windows users can find installation instructions for OpenMeetings here.
1.) Install Sun Java JDK 7u4 (or latest version), Linux x86 (32-bit) rpm from http://www.oracle.com/technetwork/java/javase/downloads/jdk-7u4-downloads-1591156.html
2.) Install Apache OpenMeetings, using latest stable build at https://builds.apache.org/job/openmeetings/lastStableBuild/
3.) Install latest stable ATutor release from http://atutor.ca/atutor/download.php