If you have console access to this box, you are able to get root access 
or more by using the Username: maintainer
Password: pbcpbn[here should you type the serialnr. of the box, the 
characters should be in Capital letters.]
FortiOS: 2.x

Regards
Johan Andersson
Atea Security, Sweden
Phone: +46-709-19 71 76
Mail: johan.andersson@atea.com