how to convert 3dsmax files to .map files

I´m tested a tookit called 3dstomap
but don´t work!
I need a way (alternative)
to convert .3ds files to .map
and compile to bsp file format

I don't know for sure if this will work because I've never tried it but:

-Download and install GTK Radiant (you'll need Quake III)
-right click in the main top-down window
-select 'misc'
-select 'misc_model'
-select Files Of Type '3ds file(*.3ds)'

This should open your 3DS Model. Then it's just a matter of saving to a .map file or exporting to a .bsp.

Hope this helps.

RV