Sorry, I may not be able to help, because I dont really know a way to change the type definition from 'Melior' to 'Times New Roman', in Word, is there no option to specify a different, alternate font.? ( I am also not too sure about 'Times New Roman' being such a good alternate successor, replacing 'Melior', concerning the formatting / setting / spacing / aligning of the original Word file.. )

But, just in case you are looking for the original type, 'Melior', itself.:
> www.myfonts.com/fonts/linotype/melior/
> www.linotype.com/1222/melior-family.html