Again this is untested. I also may be completely wrong about what your trying to do If thats the case then I apologise
OK, I have tried this and it produced the following:
It looks like this might work but the words "Receive Email from Administrators" are not next to the grayed-out field any more.
Any other ideas? Seems like we are almost there but not quite. I just thought of something...can't this be overrideen somehow anyway? For example, if the registering member were to uncheck "Receive Email from Administrators" can't this be overridden by me somehow anyway?