Matthijs, please read again my reply.
I suggested you a way: Be on some nick, then do "/ns group your_reg_nick PASS", and then you will have all the permissions you need. That way u'll be able to switch to the original nick, or to add the host via "/ns access add *id*@host* ", if it's another pc you use often. You can drop the new grouped nick after use.
bottom line: grouping to the registered nick will give you umode +r, and will actually identify you to it.