Which version of Java do I need?
You need the Java version 1.4 or higher.
For more information look at the download page

Is it Shareware, Freeware?
The sofware is free, if you use it for personal purpose. If you use it at your work or in relatation with any professional activities, you should register it (30 Euros).

What are the known bugs?

• You cannot execute a document on Linux. (It's not supported by the OS)
• Zip/Jar files are not writable.