I'd for sure be calling gkids and asking them what they did....
Do the kids remember what they put in?

are you sure it was the Bios password?
[The best method to reset a BIOS password depends on what BIOS the computer has. Common BIOS's include AMI, Award, IBM and Phoenix. Numerous other BIOS's do exist, but these are the most common.]
http://www.tech-faq.com/reset-bios-password.shtml

do you know the bios that you puter uses?

or just the user accounts login password?
http://sniptools.com/tipstricks/lost...how-to-recover