To create a new user, start--> control panel--> user accounts--> create a new account------> <follow instructions> I personally wouldn't go into too much about setting it up, just as long as it isn't a "guest" account...
I'm not 100% about this, but I think it should work if you just go back through and re-export it to somewhere easy to remember (for example just stright into C:\ - nice-n-easy..!) so that when you go back in as <bad settings user> you can find it easily and it isn't in a user profile folder.....
Alternatively, get Raptor to send you the settings file and import that one - again, I would recommend saving it somewhere easy to find....