Export Module Failure

yes it's me again 
i tried to export my model to fs2004
but i got this error massage:
'MakeMDL was not found, or failed to convert c:\gmax\gamepacks\flightsim\ximango to MDL format. check your system path to make sure MakeMDL is on it'
and the log file says:
Running model
Start! (C:\gmax\gamepacks\FlightSim\ximango)
Loading X C:\gmax\gamepacks\FlightSim\ximango...
Error in exporter: Mismatch between # vertex faces (500000) and # normal faces (943835) in part Bone01.
Error!
Error!
and i can't export...
plus i get a lot of these mesages too:
part 'blahblahblah' has a scale applied. remove before exporting.
what should i do?

i tried to export my model to fs2004
but i got this error massage:
'MakeMDL was not found, or failed to convert c:\gmax\gamepacks\flightsim\ximango to MDL format. check your system path to make sure MakeMDL is on it'
and the log file says:
Running model
Start! (C:\gmax\gamepacks\FlightSim\ximango)
Loading X C:\gmax\gamepacks\FlightSim\ximango...
Error in exporter: Mismatch between # vertex faces (500000) and # normal faces (943835) in part Bone01.
Error!
Error!
and i can't export...
plus i get a lot of these mesages too:
part 'blahblahblah' has a scale applied. remove before exporting.
what should i do?