Those books got turned into chapters of the main rule books. Fantasy Equipment is just the equipment chapter of O.L.D. Future Careers is the character creation part of N.E.W (though it's the 1.1 version, not the latest).
My opinion is that it's much better to have just the core books being updated and sold. The multitude of different books each containing a chapter or two of rules is very confusing to new players who don't know what they need.