When I warp into combat, do I exit warp and place my ship/fleet in the adjacent sector on the space lane? Thanks again in advance.
Technically, you don't warp into combat (unless a special ability states otherwise).
"Move ship/Fleet" and "Initiate Space Battle" are separate commands.
I've noticed a common mistake many people make is to try and make the rules more complicated than they are by combining actions.
For example, in a recent game the Federation player lost a system and was forced to retreat 2 ships out of it. On his turn, he wanted to warp in a Battle Group (Fleet), have the two orphan ships join it, and then start a space battle to retake his lost system.
He couldn't figure out if the orphan ships could join his Battlefleet as he was mentally combining the move and attack commands as a single action. He kept looking in the rulebook to see if ships could join Fleets during a battle. (They can't as they can only join at the start or end of a move action). He also asked if Initiating a Space Battle counted as a move action. (It doesn't)
He then got grumpy and starting mumbling that it didn't make sense that his ships couldn't join his Fleet. It was at this point that I final got him to explain what he was trying to do and was able to explain the sequence of required actions.
Moral of the story. Always remember that the Commands are atomic. Each one must end before the next one begins. It really cuts down on the rules questions.