Ive zoomed all the way out, yet there are many systems that are either cut off a bit, or completly gone, i see warp lines going to nowhere. Ive got edge scrolling enabled, and when i move my cursor to the edge, it moves about a cm but thats it. If i fight a battle(assumign it lets me) after winning, the map is cnetered on that system, and i can continue. You simply need to make it, so its always centered on your current location, which it doesnt seem to do.
Middle mouse button. Hold it down and pan the camera by moving the mouse. Took me a while to find as well...
Heh, not for me as I already play the game, moving the planetary and galactic view, with the middle mouse button.
I use wasd. It's surprisingly hard to get used to not being able to use it in the galactic war screen. Although I'm sure that will happen SOON(TM).