STEAM FOR CAFES Problem install FF

Hey guys,

I have over 40 pcs i'd like to add FF to but when I try run FF from either the short cut or from the "my game list" it goes through the cycle to launch game but stops at login password screen, asking for a password.
The problem is I don't use a password because I'm running "Steam for cafes"

Is there any way I can get this game to run through Steam for cafes?

I need some help here.

Thank You