Robert,
Did you try to install the Eclipse Plugin in Eclipse? I just tried it and it seems to work for me (see attached screenshot).
Did you follow the instructions in the Readme.pdf that is in the ./software-osx-setup folder when you unzipped the downloaded zip file? I attach it here just in case.
One thing to note is that we haven’t worked much on the Eclipse plugin recently, so your mileage may vary. I am using it with Eclipse IDE for Java Developers Version: Mars.2 Release (4.5.2).
Maarten Sierhuis
The Brahms Ejenta Team.