I just responded to your PM, and I do apologize for the delay in getting back to that message.
As for the issue above, I'm still confused as to what you're asking. When I register, I'm brought to a page that looks like:
The setting for Registration Component should not affect those fields. When I switched the value from Joomla to CB, I didn't see any change. However, if you can explain more about what textfields you're seeing change, I'll gladly help look into it more.
Thanks,
Alex