I doubt someone will send you his files.
The default configuration files are already configured for a basic installation.
If you follow the readme, there shouldn't be any problem installing ioBanana.
Here are some tips regarding your questions:
1) comment = adding a ';' in front of the line (in ioftpd.ini)
2) uncomment = removing the ';' in front of the line (in ioftpd.ini)
3) ioA.cfg is the configuration file for
ioA