Yet another stupid question, but.....
Here is my understanding so far:
To implement SMTP Login authentication I need to set one of the following three environment variables:
CVM_SASL_CRAM_MD5 (has never been tested)
CVM_SASL_LOGIN
CVM_SASL_PLAIN
I do that by adding a file named as one of the above three options in the /var/service/smtpfront-qmail/env/ directory.
Within that file I need to put the path to the CVM module it will use to authenticate.
Now the stupid questions...

Is my understanding correct?
--and--
Is there currently a CVM that qmail or anything else is using that I can use for the mailfront cvm, or do I need to find and install a separate CVM program?