Glue parts A and B together to form the fuselage.
Apply glue to the steering fins (part F) and insert them into slots in the fuselage.
Affix the rocket nozzles (part N) to the fuselage bottom with a small amount of glue.
Connect the crew capsule to the top of the fuselage. Do not use any glue, as it is spring-loaded to detach from the fuselage.