how do i put a downloaded hero on world edit

how do i put a downloaded hero on world edit
plz help

Look here: Tutorials

aft u download you get the .mdx file
-go to the import editor [a button on the top somewhere of the editor]
-file > import file > import your .mdx file
-double click and check the box that says use custom path
-delete 'war3imported/' leave the rest
-click ok
-save your map
-close [have to close] and open WE again
-go to a unit in the object editor [another button on the top somewhere]
-click a unit, go to model file, double click
-select imported
-select you imported model.mdx
-finished
-adn credit the author