FIRST DAY
So you just got your cocker and you want to know what you need to do to make it shoot.  Well, I hope some sort of bottom line was installed.  If not, send it somewhere so they can install it for you.  After all of that, your gun should have been pre-timed at the factory so you probably don't need to worry about that, but if it is shooting wierd, let an airsmith look at it.  Ok, you have a bottom line and some sort of air source.  Take some oil, put some drops in the air reciever with the barrel off.  Now take the cocking block located at the back of the gun, and pull it back untill it stays there.  If you do not do this, the air will start leaking down the barrel.   Gas it up.  The block should automatically move forward.  Shoot it 20-30 times to get the oil worked in there.  Put the barrel on, and you are ready.  Since it is a closed bolt, you have to shoot it twice to get a ball to come out.
HOW TO DO VELOCITY
Ok, after you have gassed it up and everything I told you above, look at your back block.  There should be a rod coming out of the back.  Unscrew it all the way to where it comes out.  Take the wrench that it came with in there and turn right to get higher veloctiy, and left to get lower.  After you have done that, screw your cocking rod back in untill it can't go anymore.  Shoot a few balls.  If your velocity is bad, do it all over again.  This is one of the most annoying things about the autococker.  But it is worth it.