Ditto to what everybody else said. Tons of vids on the net on how to properly set up a Floyd. It might also be a good idea to take it to a luthier or guitar shop to have it set up properly and if possible, have the tech give you some tips.
Locking trems take a bit more work but nothing difficult. You just need to learn how they function and how to porperly set them up and maintain them.
Are they still made? Haven't seen one new in forever. Just checked the website and you, sir, are correct! My mistake.
Yeah, I can't remember the last time I saw a new one in a store.