You can find Open Doors on FirstClass!
 
Step 1. Go to your desktop.
Step 2. Click on the icon with the words "Extra Items"
Step 3. Click on the icon with the words "Student Conferences"
Step 4. Scroll down until you find the icon labeled "Open Doors."
 
If you want it simpler, just follow this map:
 
Desktop>
    Extra Items>
        Student Conferences>
            Open Doors
 
 
Notice: At this time, no image can be brought up for the online version of FirstClass (http://fc.georgeschool.org/), but the instructions are no different. The online one will just have the content on different pages instead of a sidebar.