U.S.officials say no part of the three-stage rocket reached orbit and the launching was a thinly-disguised test of a long-range ballistic missile that was banned under a 2006 U.N.resolution.
VOA: standard.2009.04.15
South Korea now plans to develop a fully home-made three-stage rocket.
I'm hopeful that in the next couple of years we'll be able to achieve full and operable usability of the first stage, which is about three-quarters of the cost of the rocket.