great start Gerwin!
for names I'm not sure but better use format like "toolbox1_2" instead of "toolbox1:2", I think it might be leftover from CAD application you used
as for the windows it's more tricky for beginners -you need another material for glass that uses Targa file with alpha channel for defining transparency level (more black=more transparent) and set this material properly in Material Editor in Max, this isn't that hard
seeing the model already ingame I think the whole "proper orientation of axes" etc isn't a mistery
then there's building the hierarchy and linking of the parts of the model (if needed) BUT given ground mobiles in TW games are really REALLY simple logics-wise, it's not that important -we don't even have rotationg wheels after all
of course that requires modelling the simplistic interrior of the 977 cabin
again, good start!