It is likely that you just tried to register, but didn't complete all the steps. If this is true then you will be able to login with those details that you entered.
This site was set up to only allow one person per email address, to stop someone from registering twice by mistake. You could always set up a free e-mail address for your spouse, with a service like Yahoo mail for example.
Either the pictures are not approved yet, or they didn't upload properly. If they are not up within a day, try reducing the size of the pictures and making them smaller. Then upload them again.
Unfortunately we are not able to hand out personal information and don't have access to the school's database. If they have not registered on this site, then we can not help you find them.