In the image of the material editor in gmax 1.2:
1 : This is the Specular power
2: This is the specular colour, use this to set the specular colour when the material does NOT have a texture loaded into the diffuse channel.
3: Use the diffuse colour to set the specular colour when the material HAS a texture loaded into the diffuse channel.
(Note : The 2 items with a red X by them won`t have any effect on the specular highlight in FS2002 )
The reason for the above (3) is that the exporter sets the proper specular colour to white when a texture is loaded into the diffuse channel, regardless of the colour in number 2, middleman will in this case replace the specular colour with the diffuse colour before send the file for compiling.
Thats about it for inside GMAX.
The Export:
Make sure you have mdl commander installed (see main readme)
The new options added to middleman are only enabled when the save X file open is selected.
The 2 new options are,
Fix Specular - This will tell middleman to correct the specular power and colour in the X file so it matches whats entered in the gmax material editor
Compile X File - This will tell middleman to send the X file to makemdl once its applied the specular fix ( pretty much the same as the MDL commander No Compile option)
Now all thats left to do is hit GO.