Why not search for where your ssl.conf is located on the system.
If using Linux (you may have to run under SU or SUDO) do:
find -name *ssl.conf
If using Windows then use the GUI search.
You can also look at the apache.conf file to see the default path it expects the SSL certs to be set-up.
Keep in mind that as MAMP uses Apache that any modern Apache tutorial on configuring SSL will be very similar to what you will have to do.