@ABraun You are to kind to everybody trying to get started here, a real hero!
I second your point that he best way to start is just to read through all information sources noted in the StaMPS - Detailled instructions thread.
If anyone has questions about my documentation the best way to contact me is via email, I no longer do InSAR things because I finished my thesis but am still happy to help.
Best regards,
Gijs