Behemot Graphic Editor ( known also as RT Editor ) is a freeware program. Read file "licence.wri".
If you are interested on this program, you have created some good images or you have found some bugs please send a mail to "sergio.per@iol.it", or you can write to:
Sergio Perani
Via Filippo Turati, 27
05100 Terni ( TR ) , Italy