Some General Questions / Connection Problems

Hi Guys, im pretty new to this stuff and have some questions, where I haven't found an exact answer:

1. What does the .adx exactly do? Depends the .bin I will get on my .adx file?
2. How do I get the .bin from my PCM? Whats the right button on TunerProRT? ..if I start data streaming I will get a .adl, right?
3. Should I get a signal when clicking "Test for valid UI settings" if the car isn't connected? The popup says this, but I've tried this on 3 different PCs and it never worked..
The cable couldn't be found, neither on TunerProRT, nor on TunerCAT... Any wrong options there? https://dl.dropboxusercontent.com/u/...4/IMAG3800.jpg

(I own a '95 vette)

Max

Problem 1 and 2 have been solved, now everything is clear!

Still one strange thing there, I have asked it here: http://www.gearhead-efi.com/Fuel-Inj...t-Defined-quot

Max