Gmax aircraft - SOMEONE HELP PLZ

Hello i have recently produced a plane using gmax i have downloaded the makemdl and installed it i have saved my aircraft as a mdl file and made all the changes to the aircraft.cfg etc so it will work but i put it in to fs2002 standard and wen i select it fs2002 closes. I heard u need other converting utilities wot shall i do and were can i get the utilities somebody help me plz!!