I am not that far from the bottom of the learning curve myself, and so I think I am more understanding of how you feel.
I can't say what I mentioned is your problem, so really I don't think you should concentrate on this specific thing.
You didn't way what happens when you try to run "arduino.exe".
I'm guessing it doesn't work. But what "Error" does it give you?
Also, I am not always online. I am actually trying to get other things working.
If your earlier version worked and the new one doesn't: I would seriously suggest you go back to the older version for now.
As it works, concentrate on learning the Arduino rather than chasing these problems with the programs, etc.
Although eventually you will/may have to deal with them, for now, enjoy the Arduino and don't let these problems annoy you.