Customize Event Registration?

Hi, we are starting an after-school club at our church and are using the Event registration feature connected to our website.  We are glad to have this to simplify the "paperwork" parents have to fill out and they can also pay their initial deposit on line through paypal.  However, we have need of collecting additional information from parents that is requested by KidCheck.  Is there any way to customize our event registration? 

Thanks!
Lindsey