I was looking at some old JMB PHP code the other day.
As Greenguy says, most of the JMBsoft stuff appears to have been released under the
Apache License, Version 2.0 in 2011 (The Apache License is a permissive free software license so you can pretty much do what you want with the code).
Latest version can be grabbed from:
JMBsoft github or
Unofficial JMB support forum
I guess you could fork the jmbsoft repo on github and make your php7 updates available to the adult webmaster community!
