Each group you create can be used to plan projects, make lists, assign tasks, generate reports and error lists, set up discussion groups ... and in general do any coordination task within your group.
Creating your own functioning group is as easy as running the program. Once inside, you can reach all your teammates (your Internet access should have at least one public port).
To access your forum, the rest of your group should just type https://TuIP:3455 into their browsers. They can then automatically enter the forum without needing the program.
This version lets you create simple groups without paying a penny.