Does anyone have experience using nLite?

[Alram]

This is not the answer to your question, but it is relevant. If you are looking to make their computer more secure, install
Firefox--browser
http://www.mozilla.org/

Thunderbird--email
http://www.mozilla.org/

Sygate--firewall
http://smb.sygate.com/

Antivir--antivirus
http://www.free-av.com/

Of course teach them how to use them. Sygate can be a bit mysterious, but none of them are hard to master.