This document and videos will help organize your process for converting your FS9 gmax source to FSX native. It describes the steps and tools used and provides some hints along the way.
There are also two YouTube videos.
The first describes the process and tools from the document.
The second video takes you through the process steps one by one to prepare and execute each step in gmax.
Video 1 link: https://www.youtube.com/edit?o=U&video_id=D5eLKM6AeAk
Video 2 link: https://www.youtube.com/edit?o=U&video_id=tm25MYd_G0o
Thanks to Larry Green for his advice and assistance with getting started.