This is the compiled version of mm2d, ie the one you'll probably want. Click the
'Binary' link at the left to download this. You'll need StuffIt Expander or similar application to expand the archive.
In case you are a programmer and think you can improve mm2d, download the source
and have a look at it. We welcome improvements. Click the 'Source' link at the left.
You'll need CodeWarrior 6 (?) to use it.
The full listing of downloads as found on the project page.