If you have the game for PC, the load order for your plugins may be incorrect. Look at the files' Readme texts, and/or download BOSS to fix this. Or you could deactivate your plugins altogether. If you don't have the Nexus Mod Manager, the plugins can be found on the Skyrim launcher.exe under Data Files.
Try uncrouching ;)
It is loading, be patient
Talk to them and say (I wont be needing you anymore) Or something along that line
Any that suits your playstyle.
wait until your stamina bar refills adn then press LB on xbox
No.
vovlo wont start using key
There's nothing to join, you just buy the game and start playing.
If you mean playing it then yes, if not, then it's up to you.
check the distributor
do you have gas in the tank
There are no fixed locations, they just start appearing when you are at a high level.