Started on the booster on the back + tweaked a few areas slightly. Not to sure how to go about modelling the oval sphere that surrounds the booster. Think that the best bet might be to model it as a nurb and convert to poly. Problem is the only way I can think to insert the booster would be using the booleans tool which often results in problems and poor geometry. I am a bit of a newbie so if anyone has any suggestions they would be appreciated.