Tnx for quick response. Yes, Ioncube (http://www.ioncube.com/) is meant to obfuscate PHP code.
Do you have some developer documentation for your modules?
Sorry, we do not have special document that is oriented to developers. We are considering to add create this document in near future.
When you request for open code file for your customization purpose, you have to tell us what you want to do, so that we will provide some basic guidance on what file and then provide related files with open code.