Unfortunately I can't Skype (no microphone or webcam) and I can't FaceTime (no cellphone/mac/ipad). I can certainly try to help you over the forums here as that is the best way for me to communicate presently.
A couple of things to help me help you.
How comfortable are you with the command prompt and your terminal application? With Rails (and Ruby) you will use this A LOT and you need to be comfortable with it.
What kind of programming experience do you have?
Open up your terminal app and run the following: ruby -v and post the output here.