Not true! They responded to my support ticket within a few hours and despite the fact that I resolved my own issue in the end, they were very willing to assist. Also don't forget people, this is a FREE module, I am surprised there is any support at all. Would you offer support on a FREE module?? I doubt it. So stop being negative about 202ecommerce, they are kings in my eyes.
As for your problem with install, you need to first install an earlier version, I started with 1.12, then upgraded 1.13 before going to the latest, yes there were issues but almost all were to do with my own lack of knowledge of the product, so there was a learning curve, and most of the answers can be found in the api logs and with a bit of cross reference with eBay policy and error codes you can work it out.
For support you need to raise a ticket here https://support.202-ecommerce.com/support/home