Hey there guys, It's been a while, but i recently did a little tutorial series of the career mode in 1.0 and following. Of course, it's in my native language german This may help you out sometimes. Playlist:
The fourth episode is kinda special, because the general topic isn't the career itself, but how orbits work and how you set maneuver nodes and use them :-) Maneuvers, Orbits and Stuff:
Feel free to comment and if you have any questions, suggestions or anything else, do what you usually do! Greetings from Germany, Karosieben