i think you will find the answers to your post from yesterday now that you can open your profile
as for the contract, that was actually the same thing I was wondering. But i just ended up clicking agree, and a little check sign appeared next the contract. So I really don't think it actually needs to me printed and signed and then uploaded, also because I didn't really see anywhere where it could be uploaded.. But maybe I am wrong, and in the that case, someone please correct me
as for the security docs, you need to scan them over a regular passport photo ( i sent them a total different photo from the ones I submitted at the FI, because I figured they needed one, where my teeth are not showing? I think they need it for the visa or something) and the second thing you need to send them is a scan of your passport. so just take your actual passport, open it on the page where it shows your photo, name etc and just put it in the scanner. again, this is what i understood from it
hope this helps