In returning to KSP after a year or so I installed the latest version (0.90.0.705) on a new computer. In the new install I have very limited stock parts (1 pod, 1 fuel tank, 2 engines, 0 command/control, 1 basic structure, 0 aerodynamics, 1 utility) and the orange folder has no rockets at all. The original version I purchased was populated with a whole host of stock parts and 10 to 15 preassembled rockets. How do I get stock parts and preassembled rockets in this new install?