Setting who can approve a new member

I am having problems setting who receives the new user registered email. My site is currently set up to that users who register need approval but I (the web developer) is the only one who seems to be getting the notification email (and I don't do the approvals). The persona who is supposed to get the notifications is also a system admin but claims he never receives the email. Is there a setting I need to change? and new users never show up in the pending approval list. Any help is appreciated.

Thanks,
Kim