Contributing to MGMSIP and MGMXML is exactly the same as VoiceMac. However there may not be an about box.
If you want to contribute to VoiceMac, here is what I will do:
1. Add your name (and email if provided) to the change describing what you changed.
2. Add your name (and email/website if provided) to the contributors section.
4. If you add changes to VoiceMac's source code, you may not have them removed, but you will get credit for the changes in the history of the application.
To contribute:
1. Create a patch file using this command “diff -crB VoiceMacOriginal VoiceMac > VoiceMac.patch”.
2. Send the patch to voicemac@mrgeckosmedia.com with your name, email/website (if you want that information), and what you changed so I can add it to the about and change.