HAL is free to download and use
The latest version is 10.07
There is built-in help giving information about each part of the system. Just press <F1> at any time
There is a comprehensive 34 page manual, produced as a pdf for you to print
There is a frequently-asked questions section of this site
Guideline documents help you set up and use the system
Bulletins are issued periodically by the publishers to inform users about new features
There is a list of the various versions of the program that have been produced and information about each one of them
Users' forum on Yahoo.
The publisher will do his best to answer questions by email if the above sources of information fail to provide the answer.
