Well, I downloaded it about a week ago and have been playing it since. I can say that I have a NEW addiction. It is awesome.
You are right, there is nothing much about how you fly, controls etc.
There are different scenarios that you can load up that are more or less tutorials on how you fly, all the different MFDs and how to use them. Mind you, this is a complex program and I have found the learning curve is VERY....shallow. It is going to take some time in learning this thing. But so far, it has been a blast for me and well worth it.
I can tell you that you can use your stick and with that, your throttle control on your stick will work. Start Orbiter Laundhpad, in the Joystick section see if your stick is listed. If it is, then select slider 0 in the window below. Now give it a try. If your throttle doesn't work, go back into the Launchpad in Joystick and select a diff. "Slider".
Now there are tons of key commands to this sim. It would take me forever to list them. I can only say, go into the launch pad and click on the different scenarios. The description will tell you what you are about to do. Find those that state they are going to teach you this or that. Then in flight, hit Alt + F1. This will bring up a help window and many of those scenarios have a guide you can follow.
Here is the link to the Orbiter main forum. Very good info can be gathered here:
http://orbit.m6.net/v2/boardtalk.aspYou can download the .pdf manual here:
http://www.medphys.ucl.ac.uk/~martins/orbit/manual.htmlI got the newer High Res. Earth textures and let me tell you, I fell out of my chair when I got into space. The view is just so real!!!! First time I sync-ed orbit with the ISS, International Space Station and then in a couple of orbits it started to come into sight...............HOLY COW!! Just plain beautiful!!!
Hope this helped you a bit. Be patient, it is going to take some time to learn this Space Sim.