Hardware setup includes the trackers that you need, the button devices that you need, as well as any special hardware you may have. It should not be just any screenshot. Someone who has no idea what your project is about should be able to use the screenshot and webpage to get a good idea of the experience you are trying to provide. Please be verbose - it is difficult to be able to tell what the problem might be without a good description. This file should also include the names of the group members, operating instructions, and hardware setup requirements.
Redundancy is a good thing.
If any of these files are missing or do not have the correct names, your world will not be demoed. Worlds are due at a scheduled demo time, between 5pm and 10pm the night before in-class demos. This is your chance to get a final working version on the actual demo machine. Any emergency revisions you would like to make to the submitted world must occur between 12pm and 2pm on the in-class demo day. No worlds will be accepted after 2pm.