If you haven't done it yet, please read the pdf prospectus with all the details first (available below).
Print it, hand sign it and scan it or photograph it, to upload back as part of your submission. You only need to upload the hand signed second page.
Also make sure you have your chosen image files remaned and resized as explained under "Submission Guidelines" on the second page of the prospectus before you upload them to the submission form.
Good Luck!