Hi Keith,
No and yes.
No, I think, you misread something. I never wrote that I made any part of UCCNC. (Could you please show that post?) As a happy customer, I had some ideas that came into UCCNC, but that's all. I have no access to the UCCNC source code, I do the same as you: ask Balázs if I need some info. However, in the setup package there are some pieces of my work: UCCNC_OSK.dll (On-Screen Keyboard) plugin and the Visual Basic plugin template and example. (The example is just the VB version of the C# example, OSK is also a calculator with many useful functions.)
Yes, I'm an outsider member of the team: I try to answer the software/programming side support questions to save time for Balázs. Also, I answer the mails on support at CNCdrive. I also do some special programming and/or testing for CNCdrive partners.