You can order the software from the distributors listed below. Just send an email to get in contact and to ask any further question you may have.
GasTurb GmbHc/o Institute of Jet Propulsion and TurbomachineryTemplergraben 5552062 AachenGermany
Concepts NREC217 Billings Farm RoadWhite River Jct., VT 05001USA
Xeca Turbo Technologies Co.,Ltd.Room 704Wangjing Chengying Center, No. 5Laiguangying West RoadChaoyang District, BeijingChina, 100012