I was watching the Tyra Banks show and she said no professional modeling agency would put a ad in the paper. They usually end up scaming you. You aren't supposed to pay for anything. Don't take your clothes off even like brush off the shoulder. If they ask you to then I would walk out. They usually offer "packages" saying you get a certain amount of frames for a certain amount of money , but that is a scam.
Heres the link to maybe give you more info.
http://tyrashow.warnerbros.com/show_...cap_thu68.html
I'm not trying to scare you or anything but I personally wouldn't go.